More than a decade before the release of the book that would make him famous, Robert Pirsig had already found the central theme that would animate Zen and the Art of Motorcycle Maintenance: "Quality," a concept loosely likened to excellence and rightness. Edited and introduced by his widow, Wendy Pirsig, this collection includes previously unpublished texts, speeches, letters, interviews, and private notes, plus key excerpts from his magnum opus as well as his second book, Lila.