Walking machines have potential advantages over traditional vehicles, and they have already succeeded in carrying out many tasks that wheeled or tracked robots cannot handle. Quadrupedal Locomotion: An Introduction to Four-legged Robots brings together some of the methods and techniques in this emerging field that have recently been developed in to deal with the problems that currently prevent legged robots being more widely used for real applications. As the first book to focus specifically on quadrupeds, Quadrupedal Locomotion: An Introduction to the Control of Four-legged Robots will be bought by researchers, postgraduates and senior undergraduates in the field of robotics as well as engineers working in industry.