This classic on the evaluation of movement and gait will help you to a better understanding of dog gait through cineradiography - "moving x-rays." Up-to-date scientific information in an easy-to-understand format! Continuing research has produced this third edition of a best seller, containing the most up-to-date scientific information. It is especially aimed at the layperson, with clear, simple wording and easy-to-understand drawings. Study of this material will aid in recognizing what is good and what is faulty action and the application of what is learned should produce rewarding results for the conscientious dog breeder.