He is rarely mentioned today, but in the 1870s English photographer Eadweard Muybridge set up a bank of high-speed cameras that caught the motion of a galloping horse, Sallie G, snapping her stride every tenth of a second. It was the first photographic study of how animals move, and soon Muybridge was asked to capture all sorts of animal and human locomotion. Marta Braun focuses on this key development in Muybridge's eventful and inventive life in this book for readers 9 to 11, illustrated with his own sequential photographs. The book also features four large "moving" lenticular photos—just turn the page back and forth to see Muybridge's images come to life.