Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good overview book

I got this book used. Seller was excellent, super fast shipping and great price. The book itself is quite valuable, it has a bunch of information on how to show dressage and step by step on what will happen at a show and tons of checklists to help you be prepared. Great if you haven't been to dressage show or getting back into it after a long hiatus like myself, also great if you suffer from nerves because it has a plan and if you stick to the plan, you will do the best you can do. Obviously, since it is a book, a couple of things are out of date, so go ahead and check on the internet with the USDF for the latest about helmets and tests. But overall, great book to get you started and to help with those show ring jitters. I realize you can probably get every bit of this info online, but it is really nice to have an inclusive thing to tote along with you to shows and the barn, no "http://" required.