his book encompasses the extensive work of Dr. Perry and her successf ul years as a therapist and surgeon, renowned for her expertise in hum an gait. The text is broken down into four Fundamentals, No rmal Gait, Pathological Gait, and Gait Analysis Systems. In addition t o the descriptions of the gait functions, a representative group of cl inical examples has been included to facilitate the interpretation of the identical gait deviations. The book includes detailed laboratory r ecords and more than 450 expert illustrations and photographs.