I can't even begin to list the many reasons why these are such a handy tool. I've had them bedside for the last few evenings so that I can study before I fall asleep. Since they're laminated, I'll be able to use a Clorox wipe on them once they've made their first trip to the barn.
The thing I like most about them is that all three tests for each level are together in one handy place. With all three tests from the same level right next to one another, it's easy to flip through them to see how the level of difficulty increases from one test to the next.
I bought my copies from VTO Saddlery for $28.99 which included $4.99 for shipping.
These are some pictures of the inside of the Introductory and Training Level test booklets. Click picture for a larger view.