A leading practitioner of conceptual art, Mel Bochner (b. 1940) was one of the first artists in the 1960s to reintroduce language into the visual field. Despite their significance, these contributions remain unexplored in art historical scholarship. This fascinating book provides for the first time an overview of Bochner's language-based works from the past forty years, including previously unpublished images and projects. Long preoccupied by language and its influence on vision and perception, Bochner has shifted recently from a more analytical use of language to an exploration of the way in which colour diverts a text from its duty to convey meaning. As a result, language becomes a tool in Bochner's interrogation into how an object, be it a painting, sculpture, mathematical equation, or a complete replacement of the 'object' with language itself, can function as a work of art.