This comprehensive textbook lets readers develop the strong theoretical and practical foundation needed for effective decision-making in occupational therapy. Emphasis on both clinical and professional reasoning gives readers the skills needed to make informed decisions as practitioners, managers, and educators. This textbook offers easy-to-follow explanations of current theories of clinical and professional reasoning, demonstrating their relevance to occupational therapy work. "Thinking about Thinking" quotes offer thought-provoking perspectives on reasoning. Case examples and learning activities demonstrate how reasoning is applied in various clinical and professional scenarios. Each chapter includes learning objectives and a key word list. Photographs, figures, and tables support reader understanding.