This softcover book from 1972 describes and illustrates horse tack including saddles, bridles, boots, bits, and how all of this gear works on the horse to give comfort and control for the rider.
This is a super cute retro book about horse tack. I love all the old photographs in it, and it is so hard to find any general horse book that even touches on saddleseat horse riding, but this one talks about it quiet a bit! I love having this book in my library