I recently coached a group of eighth-grade students on how to take standardized tests, including the COOP. Their school had instructed them to buy this book, so we began by using it as a reference and workbook. We quickly discovered that the book was filled with poorly written exercises, obviously wrong answers, and systematic labeling errors. Please do not buy this book! It is so badly written that it may actually do more harm than good, and the authors should be ashamed of foisting such a flawed work on unsuspecting students. If you're going to take the COOP, there is a perfectly serviceable book, published by ARCO, that we found to be a much better resource.

This book might give you good practice on high school entrance exams, but the careless mistakes make it frustrating to get through even one subtest! They don't even know their alphabet! This is the first book I have seen which has a language test with the options (A), (B), (D), and (D)! It is an outrage to know how poorly this book has been put together. In the long run, it will teach your child to learn a thing or two about entrance exams, but please, if you have other books to choose from, choose another one!