Why do colors exist in the first place? What biological and cultural functions do they serve? And what changes when we use this knowledge not only to explain our perceptions, but also to create a more humane environment?

These questions have been at the heart of my research for many years. They were the focus of a studio discussion for the series “Die eine Frage” on Deutschlandfunk Kultur, which lasted just under 30 minutes. The program aired on August 28, 2026, as part of “Studio 9.”

For me, the starting point is a fundamental shift in perspective: Color is not a property of things. It arises as a perception within us. Matter and electromagnetic energy form the external conditions—but the world of color only comes into being through the interaction of the eyes and the brain, the body, memory, and experience. That is why color is far more than mere aesthetic decoration. It is one of the oldest and most powerful media through which people distinguish, evaluate, remember, and shape their environment.

From an evolutionary perspective, color vision helped us identify food, assess dangers, evaluate habitats, and perceive social cues. Culturally, we have developed this biological ability into a highly complex communication system: colors structure spaces and objects, signify belonging, create identity, and convey meaning long before we consciously put them into words. This intersection of evolutionary biology, perceptual psychology, and design forms a core focus of my research.

Why, then, do we still live in a predominantly white environment?

A second focus of the discussion was the built environment. A very large proportion of today’s wall and ceiling surfaces are painted white or designed to be nearly achromatic. In doing so, we are forgoing a significant part of our perceptual capabilities precisely in the places where people spend a large part of their lives.

For me, humanistic environmental design therefore begins with people: How does a space support orientation, relaxation, concentration, communication, identification, and well-being? What color schemes suit the activities and needs of the people who live and work there?

Evidence-based color design does not mean making rooms as colorful as possible. It means using color so precisely that it can fulfill its biological, psychological, and social functions. Color thus transforms from a decorative addition into a design element that shapes the environment.

What do our favorite colors reveal about us?

The third set of topics moved directly from the environment to personality. Why does one person feel exceptionally comfortable with a deep ultramarine, while another prefers light turquoise tones or warm shades of orange and red?

Color preferences arise from the interplay of biological factors, individual experiences, and cultural influences. In my research, I also examine the relationships between color preferences and personality traits—based, among other things, on the Big Five model.

This opens up an exciting new perspective on design: What if we could choose our clothing, cosmetics, living spaces, and products based more on who we truly are and how we experience ourselves?

Colors can then help bring our personalities to the fore. Clothing and makeup wouldn’t have to follow ever-changing trends; instead, they could enhance our individuality. Living spaces could better reflect our personal needs. Products would be cherished for longer because their design isn’t just appealing in the short term but fits who we are over the long term.

For me, this also raises the issue of sustainability. We don’t need to replace things that truly suit us as quickly.

Can color design help us live more authentically?

Perhaps this is the most socially interesting implication: Color does more than just promote well-being. It plays a role in how we see ourselves and how we want others to see us.

We always design our appearance, our homes, our workplaces, and our products as a form of social communication. Color is one of the fastest forms of communication there is. Even before someone analyzes our style or understands our words, our appearance—as conveyed by color—has already made an impression.

A good color scheme, therefore, does not help create an artificial effect. At best, it does the opposite: it makes our personality, our needs, and our attitude authentically perceptible.

This is exactly where color psychology and design come together for me. If we better understand why colors exist, how they affect us, and what experiences we associate with them, we can design our environment more consciously—making it healthier, more personalized, more social, and more human.

The interview on Deutschlandfunk Kultur explores these three major topics: Why do colors exist? How can we use their effects to create a more humane environment? And what do our color preferences reveal about our personalities?

The program is just under 30 minutes long and can be listened to on Deutschlandfunk Kultur .

For Le Corbusier, color was not merely a decorative element, but an essential tool for shaping space: “In architecture, color is just as powerful a means as the floor plan and the section. Or rather: polychromy is an integral part of the floor plan and the section themselves.”

Prof. Dr. Axel Buether’s lecture takes up this idea and expands on it using insights from modern perception and color psychology. After all, architecture does not arise solely from floor plans, sections, construction, and materials—it takes shape in our perception. Light and color influence how we experience spatial boundaries, proportions, and distances; how we orient ourselves; and the atmosphere a space creates.

Color thus becomes a dimension of architectural design in its own right. It structures spaces, alters their perceived size and depth, creates a sense of belonging and identity, and influences our emotional experience as well as our behavior. Using examples from architecture, interior design, and healthcare facilities, Axel Buether demonstrates how this potential can be harnessed today in a targeted, evidence-based manner—beyond purely subjective matters of taste.

This lecture offers a new perspective on a dimension of design whose impact is ubiquitous yet is often underestimated in the architectural design process: Those who design architecture shape perception—and, in doing so, always shape color as well.

AIV Frankfurt Summer Festival 2026 – “Join Us in Building the Spaces of Tomorrow”
August 13, 2026 | Lufthansa Group Hangar One, Frankfurt am Main
7:00 p.m. | Keynote by Prof. Dr. Axel Buether: “Color as a Dimension of Architecture”

How much health is there in a room?

More than we see—and far more than has been taken into account in many planning processes to date. Interior spaces are not neutral backdrops. Their colors, lighting conditions, materials, proportions, and spatial structures constantly influence how safe we feel, how well we can orient ourselves, whether we can concentrate or relax, and the extent to which our bodies are stressed or supported by the environment.

Under the theme “Aesthetics & Health – How Interior Design Influences Our Well-Being,” the 2026 Interior Design Summit will bring together leading voices from interior design, architecture, medicine, psychology, research, and planning practice in Berlin from November 13 to 15. I am very pleased to help shape this pioneering professional conference organized by the bdia—the Association of German Interior Architects—with a keynote address and a master class.

From an Aesthetic Choice to a Health-Related Goal

Interior design is still primarily judged on the basis of formal aesthetic criteria. The discussion centers on whether colors, materials, and shapes complement one another, conform to a particular style, or convey a contemporary impression. These criteria remain important—but they are not enough.

The crucial question is not merely what a space looks like, but above all: What effect does it have on the people who spend time there?

Does it promote a sense of direction and emotional security? Does it support concentration, communication, or recovery? Does it reduce stress and sensory overload? Does it convey a sense of protection and safety? Does it stimulate without being overwhelming? And does it take into account the diverse physical, psychological, and social needs of its users?

Health-promoting interior design begins when such objectives are not merely asserted after the design is complete, but are systematically incorporated into the planning process from the very beginning.

Keynote: Color as a Factor in Health

In my keynote address , “Color as a Health Factor,” I explain why the colors of light and surfaces should not be viewed merely as decorative choices. Colors are a fundamental component of our perceptual environment. They structure spaces, direct attention, facilitate orientation, alter the perception of proximity and distance, and shape the emotional atmosphere of a place.

Their effect is by no means created solely by individual shades of color. What is crucial is the complex interplay of color, brightness, contrast, materiality, light, the function of the space, and the context of use. The same color can have completely different effects in different spatial and social contexts.

Based on my many years of research and the latest work from the Institute for Evidence-Based Color Psychology, I will explain how color design can help to,

To reduce stress,
promote a sense of direction and security,
support concentration and performance,
facilitate recovery and rest,
strengthen communication and social participation,
and create health-promoting environments.

This makes color a key design factor in virtually all areas of interior design: for healthcare and long-term care facilities as well as for workplaces, educational spaces, residential buildings, public facilities, and the renovation of existing buildings.

Master Class: Designing Spaces for People – Translating Impact Goals

The masterclass “Designing Spaces for People—Translating Impact Goals” focuses on the practical application of scientific findings in planning practice.

Terms such as well-being, safety, engagement, comfort, and regeneration are frequently used in design processes. However, it is only once it has been clarified what these goals actually mean for a specific user group, activity, and spatial context that sound design decisions can be made.

Together, we explore how abstract requirements can be translated into clear spatial objectives. Building on this, we develop strategies for tailoring color, light, materials, contrast, spatial organization, and atmosphere specifically to the needs of future users.

Participants will gain insights into current research findings and explore a methodological approach that goes beyond personal preferences, conventional color symbolism, and general impact tables. The focus is on evidence-based, user-centered design, in which decisions are grounded in expertise, communicated within the project, and evaluated in terms of their intended impact.

A Necessary Shift in Perspective in Interior Design

The 2026 Interior Design Summit takes place at a crucial turning point for the discipline. In light of growing mental health challenges, an aging society, new ways of working and learning, and increasing demands on care, prevention, and inclusion, the health impact of interior spaces can no longer be treated as a secondary consideration.

Interior design bears responsibility for people’s living conditions. It can exacerbate stress—or counteract it. It can make it harder to find one’s way—or instill a sense of security. It can exclude people—or enable their participation. It can create institutional coldness—or create spaces where dignity, self-determination, and human connection can be experienced.

This is one of the key challenges facing our profession in the future: not to pit aesthetic quality against health benefits, but to view them as inseparable components of good design.

I look forward to professional exchanges with interior designers, planners, researchers, and everyone who not only designs spaces but also seeks to understand their impact on people and use them responsibly.

Interior Design Summit 2026
Aesthetics & Health – How Interior Design Influences Our Well-Being

November 13–15, 2026
AXICA Congress and Conference Center
in the DZ BANK building
Pariser Platz 3, Berlin

Friday, November 13, 2026

Masterclass:
Designing Spaces for People – Translating Impact Goals

Keynote: “
: Color as a Factor in Health“

Link to register with the organizer bdia

My new article in *Betriebliche Prävention – Arbeit, Gesundheit, Unfallversicherung* (Occupational Prevention – Work, Health, Workers’ Compensation Insurance ) is the first to consistently classify color and lighting design as an integral part of occupational safety and health. This gives the needs-based design of spaces and workplaces new professional, social, and possibly even legal significance.

In architecture, colors are still often viewed as a matter of taste, aesthetics, or cosmetic enhancement. Light, too, is often planned primarily on the basis of technical specifications. The effect that the overall visual atmosphere of a workspace has on perception, the nervous system, behavior, and health, however, is often overlooked.

This is exactly where my article “Color Design Is Occupational Safety” comes in. It explains why light and the colors of walls, ceilings, floors, surfaces, and furnishings are not merely decorative details. They constitute constant environmental stimuli to which the human body reacts continuously—long before we consciously assess a room.

Work environments can make it easier or harder to find one’s bearings, instill a sense of security or create uncertainty, support concentration or cause additional stress. They can have a calming, energizing, or motivating effect and facilitate recovery. However, they can also intensify visual distraction, sensory overload, monotony, stress, and mental fatigue.

A supposedly “neutral” design featuring white walls, gray floors, and uniform artificial lighting is therefore by no means ineffective. Design monotony, too, influences perception and well-being. The crucial question is not whether spaces have an effect on people, but how they affect them.

From Aesthetics to Preventive Health Care

The particular significance of this publication lies in its professional context. The article does not appear in an architecture or design magazine, but rather in the professional journal *Betriebliche Prävention – Arbeit, Gesundheit, Unfallversicherung* (Occupational Prevention – Work, Health, Workers’ Compensation).

This fundamentally changes the perspective: color and lighting design are no longer discussed solely as a design element, but as a potential component of prevention.

If visual environmental conditions have been shown to influence stress regulation, the ability to concentrate, orientation, emotional stability, motivation, and social interaction, they must also be taken into account in occupational safety and health. A needs-based color scheme therefore affects not only the quality of architecture but also the conditions under which people work every day.

This reassessment could have far-reaching consequences. It opens up the discussion of whether visual and atmospheric impacts must be incorporated more systematically into planning processes, risk assessments, and occupational prevention strategies in the future.

Workplaces affect the nervous system

People spend a significant portion of their lives indoors. There, they are constantly exposed to colors, lighting conditions, contrasts, reflections, and visual stimuli. These influences are not only consciously perceived but are also processed largely subconsciously.

The autonomic nervous system reacts immediately to the quality of the environment. Light influences activity levels, alertness, and biological rhythms. Colors shape perception, direct attention, provide orientation, and influence the emotional assessment of a space.

This is particularly relevant in work environments that are already associated with high levels of mental, physical, or emotional stress—such as hospitals, nursing facilities, schools, government buildings, manufacturing facilities, control centers, or open-plan offices.

In this area in particular, design must not be considered only after all functional and technical decisions have already been made. It must be understood from the outset as part of an overall plan that promotes health.

Evidence-Based Design Instead of Personal Color Preferences

A prevention-oriented color scheme does not mean making rooms as colorful as possible or applying general color guidelines. It must be tailored to the activities, stressors, and psychological needs of the respective users.

Various atmospheric qualities are required:

• Focus and precision,
• Orientation and safety,
• Communication and Collaboration,
• Rest and Recovery,
• Engagement and motivation,
• Identity and Social Belonging.

The appropriate lighting and color qualities depend on the context of use. An intensive care unit has different requirements than a classroom, an administrative office, a production hall, or a break room.

Evidence-based color design therefore does not begin with the selection of individual shades, but rather with an analysis of the usage context. Only then are lighting, room colors, materials, surfaces, and furnishings combined to create an effective overall atmosphere.

Prevention begins with shaping the environment

Drawing on scientific findings and completed research projects, this article demonstrates that needs-based design can promote well-being, orientation, concentration, motivation, and job satisfaction. At the same time, it becomes clear that good design does not necessarily entail higher construction costs.

Often, the key difference lies not in the price of the materials, but in the quality of the design. Once colors and finishes have been determined, they can either be chosen based on personal taste or systematically tailored to their intended effect and function.

This holds significant potential that has hardly been tapped so far: color and lighting design can become a relatively cost-effective tool for workplace prevention.

The workplace of the past century was optimized primarily in technical, functional, and organizational terms. The workplace of the 21st century must also be understood as a biopsychosocial environment.

After all, people don’t just work with their minds and bodies. They always work with their nervous systems as well.

Read the full article “Color Design Is Occupational Safety” in *Betriebliche Prävention*

A new study shows that evidence-based color design improves well-being, orientation, concentration, school enjoyment and teacher motivation – without additional costs, but with measurable effects on learning and therapy processes.

Why learning environments are underestimated

What does it take for education to succeed? International educational research largely agrees on one point: the most important factor for learning success is the quality of the teacher. However, this raises a crucial follow-up question: under what conditions can teachers, therapists and pupils develop their potential at all?

Learning never takes place independently of the environment. Spaces influence whether people feel safe, whether they can find their bearings, whether they can calm down, develop confidence or are permanently under stress. Despite this, schools and therapy facilities are still often planned primarily on a functional or economic basis – while the psychological effect of the environment is hardly ever systematically taken into account.

This is precisely where the new study on the MOSAIK school in Grevesmühlen comes in. It examines color not as decoration or a question of style, but as a controllable environmental factor with a direct effect on perception, behavior and motivation.

The MOSAIK school as a real-life experiment

The MOSAIK school in Grevesmühlen is a special school with a focus on mental development. As part of a comprehensive new build, an evidence-based color and lighting concept was developed there, which was scientifically supported by the Institute for Evidence-based Color Psychology at the University of Wuppertal.

The aim was to create spaces that facilitate orientation, promote emotional security, reduce sensory overload and actively support learning and therapy processes. Color was not selected according to decorative preferences, but according to functional criteria: Orientation, concentration, calming, activation and social interaction.

The project was designed to be participatory right from the start. The needs of pupils, parents, teachers, therapists and those involved in planning were analyzed in workshops. Color and material concepts were then developed, which were sampled on site under real lighting and room conditions and adapted several times.

This phase in particular is crucial: colors never work in isolation, but always in combination with light, materiality, room size and usage situation. Often, even a minimal nuance decides whether a room is perceived as calming, stressful or orienting.

The key finding: motivation can be influenced spatially

The results of the study show an exceptionally high level of agreement between all groups surveyed – pupils, teachers, therapists and parents. It is particularly noteworthy that the positive effects affect almost all factors that are crucial for successful educational processes.

88% of pupils report a greater sense of well-being and greater enjoyment of school. Just as many rate learning, concentration and emotional regulation positively. 94% find their way around the building better thanks to the color-coded orientation system.

Parents also notice significant changes. 89% report that their children speak positively about the new rooms. Confidence in the educational quality of the school is just as high. Many parents describe the environment as appreciative, professional and emotionally stabilizing.

Perhaps the most important finding, however, concerns the teachers and therapists themselves. 89% experience the color scheme as a direct support for their educational and therapeutic work. The majority report a greater sense of well-being, a better atmosphere, greater calm and increased motivation in their day-to-day work.

The study thus points to a previously largely underestimated connection: if the quality of the teacher is the most important factor for educational success, then the conditions under which teachers work also become crucial. The MOSAIK study shows for the first time under real conditions that evidence-based color design not only has an effect on students, but can also positively influence motivation, professional identification and social dynamics within an educational institution.

Why the results are scientifically relevant

International interest in the effect of built environments on learning, health and behavior has been growing for years. Studies in environmental and perceptual psychology show that factors such as light, color, orientation, acoustics and stimulus levels have a significant influence on concentration, stress regulation and social interaction.

The MOSAIK study adds a crucial aspect to this field of research: it examines the effect of evidence-based color design not in the laboratory, but in the real everyday life of a sensitive educational-therapeutic environment.

It is precisely this practical relevance that makes the results so relevant. The study shows that design not only creates aesthetic quality, but can also have concrete effects on behavior, motivation and institutional trust.

What the study means for the future of educational spaces

The results of the MOSAIK school make it clear that schools are more than just functional buildings. They are emotional and social environments. Those who plan educational spaces always design the conditions for learning, relationships and participation.

Evidence-based color design is therefore not a decorative add-on, but a previously underestimated tool for supporting educational and therapeutic processes.

The study is an example of the potential that lies in a design that is consistently geared towards human perception and psychological needs. This knowledge will play an increasingly important role in educational and healthcare buildings in the future.

Because good education doesn’t just start in the classroom. It begins with the environment in which people learn, work and meet.

The complete study “Color as a controllable environmental factor in learning and therapy rooms” is published at: DOI: 10.13140/RG.2.2.18963.03367
Download the study free of charge at Research Gate
Download the study free of charge at Academia

How Color-Coordinated Rooms Can Alleviate Anxiety and Improve the Emotional Well-Being of Breast Cancer Patients

The Institute for Evidence-Based Color Psychology, in collaboration with Helios University Hospital Wuppertal, Witten/Herdecke University, and the University of Wuppertal, is launching an interdisciplinary research project focused on providing emotional support to breast cancer patients during radiation therapy. The grant application has been submitted.

At the heart of this project is the question of how the deliberate redesign of the treatment rooms’ atmosphere—particularly through the use of color on walls, ceilings, floors, and furnishings —can help reduce feelings of anxiety and stress and improve quality of life during therapy.

The Background

For many patients, radiation therapy is associated with severe emotional distress. The technical nature of the treatment, the cold rooms, and the feeling of being at the mercy of the machine—all of these factors can exacerbate feelings of insecurity, anxiety, and depressive symptoms. Studies show that up to 50% of breast cancer patients experience anxiety during radiation therapy.

At the same time, findings in environmental and color psychology show that colors and materials used thoughtfully in design can significantly influence emotional responses, the perception of spaces, and subjective well-being—especially in highly sensitive medical settings.

Purpose of the Study

The study examines whether and how a thoughtfully designed interior environment—featuring surface designs based on color psychology and atmospheric qualities—has a positive effect on:

• Anxiety and Stress Levels
• Quality of life
• Treatment Acceptance

has an impact. The role of light quality is also taken into account to a lesser extent, for example, by selecting appropriate light sources to enhance the room’s atmosphere.

Course Structure

The study compares two groups of breast cancer patients receiving radiation therapy:

• Group 1 will be treated in the existing (neutral) rooms.
• Group 2 is treated in rooms that have been redesigned to create a more inviting atmosphere, with colors and decor intended to promote a greater sense of well-being.

In addition to sociodemographic and clinical data, the study also collects psychological parameters such as anxiety (STAI), subjective stress levels (Distress Thermometer), and quality of life (EORTC QLQ-C30 / QLQ-BR42).

The Interdisciplinary Team

The project brings together expertise from the fields of medicine, psychology, and color design:

• Prof. Dr. Marc D. Piroth, Department of Radiation Oncology, Helios University Hospital Wuppertal / Witten-Herdecke University
• Prof. Dr. Vesna Bjelic-Radisic, Department of Obstetrics and Gynecology, Helios University Hospital Wuppertal / Witten-Herdecke University
• Prof. Dr. Axel Buether, Chair of Visual Communication Education, University of Wuppertal
• Institute for Evidence-Based Color Psychology, Scientific Director of Color Concepts and Room Atmosphere

Perspective

This research project takes a holistic approach that goes far beyond functional interior design. The goal is to gain scientifically sound insights into how targeted design can create a healing atmosphere in everyday clinical practice—with direct benefits for the emotional well-being of female patients in stressful treatment situations.

Violence in hospitals is on the rise—an alarming problem that is particularly evident in emergency rooms. Overwhelmed patients, anxious family members, and long wait times create a volatile mix that often leads to verbal or physical aggression toward staff. But our latest intervention shows that a thoughtfully designed spatial environment can have a significant positive impact on people’s behavior.

We developed a color and lighting concept for the central emergency room at a hospital in Essen, which is temporarily housed on the second basement level—a space with no natural light—due to a planned new construction project. The goal was to alleviate the oppressive and stress-inducing environment, where waiting times often put patients and their families to the test.

What has changed?

• Color Scheme: All surfaces have been redesigned using a soothing, inviting color palette and appealing finishes that are specifically intended to influence perception and mood.
• Lighting solution: A skylight flush with the ceiling was installed to bring artificial daylight into the room and visually open it up toward the ceiling. This creates a sense of spaciousness and openness that completely eliminates the basement-like feel.

First Successes Are Visible The results speak for themselves: Both patients and staff report a significantly improved emotional atmosphere. The oppressive feeling of being “locked up and forgotten” has been replaced by the new atmosphere. At the same time, the number of incidents and conflicts in the waiting area has decreased measurably.

A Model Project with a Clear Message This project impressively demonstrates what is possible through the strategic use of light and color. At the same time, it underscores a key principle: waiting areas belong in natural daylight, not in basements. Where this—as in our example—is not structurally possible, evidence-based color and light psychology offers an effective solution.

Violence prevention starts with interior design.
With this approach, we have not only improved the atmosphere but also made an important contribution to the safety of hospital staff. A win-win for everyone involved.

The color scheme of school buildings and classrooms plays a crucial role in creating a positive learning environment. Colors have a significant impact on the psychological and physical well-being of students and faculty alike. They not only influence the aesthetic perception of the space but also affect students’ sense of belonging to the learning environment, their well-being, recovery, concentration, academic performance, social behavior, and creativity.

Identification with the Place of Teaching and Learning

Colors create a sense of belonging and can reflect a school’s identity and culture. A well-designed color scheme helps students and teachers identify with their school.

Well-being and Recovery

Colors influence the mood and motivation of students and teachers. A systematic and purposeful use of color enhances the functionality of any space. Certain colors create a welcoming and comfortable atmosphere, promote general well-being, have a calming effect, and aid in recovery.

Attention and Concentration

Other colors improve attention and concentration. A well-chosen color scheme can help increase students’ ability to concentrate.

Academic Performance

Color schemes can indirectly influence academic performance by creating an environment that is conducive to learning. A color palette that promotes learning reduces stress and increases motivation to learn.

Social Behavior

Colors influence the social behavior of students and teachers. Certain colors encourage communication and interaction, while others tend to stimulate reflection and independent work. Choosing the right colors creates a mindful, caring, and respectful atmosphere that fosters positive relationships.

Creativity

Creativity is an essential part of the learning process. Certain colors and color combinations stimulate the imagination of both students and teachers and create an atmosphere in which new ideas can emerge.

Link to the Didakta website—Cologne Education Fair

Link to the workshop registration page

Classrooms conducive to learning

The Baden-Württemberg Vocational School Teachers’ Association (BLV), together with the Fachverband Gebäude-Klima e. V. (FGK) , invites you to the online event “Building the school of tomorrow today”. Scientists and experts will explain online on December 7 from 2 p.m. how acoustics, colors, light and room climate interact to create classrooms that are conducive to learning and thus to good teaching and learning .

The event will also provide an opportunity to find out what consequences structural deficits can have on health and performance. Participants can learn about options for improving and redesigning classrooms, find out more about the costs and benefits of the topics and discuss them with the following experts .

Thomas Waldhecker (BLV), Dr.-Ing. Claudia Kandzia (FGK), Dipl.-Päd. Holger Brokmann (Lernen statt Lärmen e. V.), Prof. Axel Buether (Bergische Universität Wuppertal) and Dr. Jürgen Waldorf (Managing Director Licht.de). The event will be moderated by Dipl.-Ing. Claus Händel (FGK).

The event is aimed at interested parties from the fields of schools, educational institutions, school authorities, local politics and building planning.

Information and the registration link can be found on the FGK website

Online lecture for the Thuringian Housing and Real Estate Association “Color and health in the workplace – How colors affect people’s well-being, work motivation and social behavior”

Link to the organizer Verband Thüringer Wohnungs- und Immobilienwirtschaft e.V .