For decades, Thieme Publishers, as a leading medical publisher, has been dedicated to conveying specialist knowledge from and to science and practice. Since 2020, this spectrum has also embraced architectural psychology in the planning and design of hospitals. The article by Jens Kohrs on the work of Gemma Koppen and Tanja C. Vollmer marks the beginning. From the Interviews: “(Kopvol) changes hospitals. The architectural psychologist’s approach is primarily intended to reduce patients’ stress – and ultimately help them get better.”