Frequently requested - now available again: The authors, led by editor Peter Oesch, present the third edition of the successful Volume 2 on the musculoskeletal system from the series "Assessments in Rehabilitation" in a new format. The new edition has been revised and supplemented, but it maintains its focus on presenting and describing the assessments in a differentiated manner. Feedback from customers indicates a high applicability in rehabilitation practice. Assessment systems are tests and instruments for measuring body structures and functions, activities, and patient participation. They capture the medical impairment of the musculoskeletal system, both qualitatively and quantitatively. With their help, therapists determine the current consequences of this impairment as well as the functional and psychosocial limitations for the affected client.