PREPARE YOUR OT STUDENTS TO BECOME OT THINKERS. Thoroughly revised and updated, the 4th Edition of this groundbreaking text traces the historical development of the foundations of modern occupational therapy theory; examines its status today; and looks to its future. Dr. Kielhofner compares and contrasts eight well-known models, using diagrams to illustrate their practical applications and to highlight their similarities and differences. Well organized chapters are supported by extensive references.