Every five years since 2005, the Mus e de l'Elys e in Lausanne, Switzerland, has staged an exhibition to review tendencies and look at perspectives in contemporary photography. reGeneration 4 accompanies the 2020 exhibition and features works by a wide range of emerging international photographic artists. In addition, the book includes statements from participants in the earlier exhibitions, commissioned by the curators-editors, about their individual artistic evolution, in which environmentalism, social equality and inclusion, digitalization, and securing their own livelihood appear as key topics and practical challenges. The book presents these insights alongside depictions of the works by all thirty-five artists selected for reGeneration 4, brief commentary texts, and an introductory essay.