The first monograph on Andreas Horlitz’s work over a quarter century covers an engaging richness of artistic strategies. After beginning as a prizewinning photographer, Horlitz turned to word-and-picture constructions, experiments with Xerox reproductions, and, recently, mirror-and-light works and architecturally related, site-specific projects. Throughout his career, language, either textual or scientific, has figured large–in one case as large as a six-story installation incorporating the sleep research of Alexander Borbely, who has recorded his daily activity patterns since 1982 using a monitor strapped permanently to his wrist. These immensely inventive images and structures are discussed in essays by Klaus Honnef, Irene Netta, Sibylle Omlin, Hans Scheurer and Stephan Trescher.