I ride huntseat and my horse is somewhat green. I'm thinking maybe books with patterns or exercises that we can practice to keep him in shape and moving properly. And so we're not doing the same ol' circles and patterns that my brain thinks up. I've come across quite a few by Cherry Hill (101 Arena Exercises, 101 Lunging Exercises, Beg, Int, Adv English Exercises, etc). Any opinions on these? We will also be starting jumping at some point, so beginning jump books are good too.