The textbook we used is called Clinical Biomechanics of the Lower Extremity by Ronald Valmassy. I don't know that many other students in my class bought it, but I found it helpful. I don't know about other books, so I can't compare it to anything.
For studying, I just sat down with my notes and the textbook and my foot model and worked things through that way. If I needed to, I also pulled out my anatomy atlas to help tie that into it as well. We were allowed to use our foot models on our tests, so studying with the foot helped me not only figure things out, but also remember it for test time.