Compact, interdisciplinary, and practice-oriented - this multifaceted textbook on photochemistry presents itself in this way. The well-structured and very clearly written work familiarizes the reader with all significant photochemical processes. The spectrum ranges from classical photochemical reactions to photosynthesis, chemiluminescence, photovoltaics, and photopolymerizations, all the way to photodynamic cancer therapy. The multifaceted learning content is always presented competently and vividly, and the review and deepening of the learning material is ensured through numerous current literature references for each chapter. The second part of the book presents methods and experiments related to the learning content in detail. These experiments will certainly enrich the experimental repertoire of many lectures and practical courses, and also provide valuable inspiration.