This essential provides planning-relevant information on architectural psychology concepts and empirical results on the effects of built environments on people, and provides guidance on how to optimize the relationship between people and the built environment. This Springer essential is a translation of the original German 1st edition essentials, Kompendium der Architekturpsychologie  by Antje Flade, published by Springer Fachmedien Wiesbaden GmbH, part of Springer Nature in 2020. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors.