Muybridge is still an excellent reference... and every animator in my circle has copies. Please note that because of the way the photographs were taken, you can't simply loop them to get an exact repeating cycle. However, you can get an excellent feel for the motion and redivide and spread it evenly over the number of frames you are working with. Years ago (King's Quest 4) I needed to animate a satyr and used the adjutant stork to get those backward-bending knees to work right (weight over the feet). So when you browse through the books, be creative with how you use them. :) Carolly