Nearly 600 instruments are reviewed in this new edition of occupational therapy’s classic publication, includ­ing many developed by occupational therapists. An international team of academicians, clinicians, researchers, and advanced-degree candidates working in various prac­tice arenas collaborated on this update. The assessment profiles—which include title, authors, format, purpose, population, time required to administer, setting or position, materials or tools, brief description, interpretation, reli­ability and validity, source, additional references, cost, and sample—will be useful to clinicians and students, who must choose appropriate tools for clinical practice; to educators, who select assessment procedures for the classroom; and to researchers, who will find instruments that are designed for research purposes or will benefit from further investiga­tion. This edition includes a downloadable matrix of all assessments, show­ing content areas and age ranges of each instrument.