This volume presents art with light in all its facets – using mirrors, black light, neon tubes, and bottles, Brigitte Kowanz creates objects and spatial artworks in which she showcases light. "What is light?" is the central question of her oeuvre. "Light is what you see," is the artist's answer. Light helps us see; it makes everything visible, yet remains invisible itself. Brigitte Kowanz explores this paradox in her art of light. This volume offers a retrospective of the work of the artist, who died in 2022. In addition to her central works, it presents iconic works in which she addressed current topics such as digitalization and new communication media in an information society as early as the 1980s.