A companion to the author's bestselling biography of Len Lye, this compelling volume shifts the focus from Lye's life to his art practice and innovative aesthetic theories about "the art of motion," which continue to be relevant today. Going beyond a general introduction to Lye and his artistic importance, this in-depth book offers a detailed study of his aesthetics of motion, analyzing how these theories were embodied in his sculptures and films. Thoroughly researched and fully illustrated, this unique set also includes a DVD featuring Lye's films, kinetic sculptures, and interviews with the artist himself.