I purchased this book I believe in 2005 to prepare for the exam. The subject matter is good, but there are so many incorrect spellings throughout the book that I could not believe that I had paid $60 for it. I paid half the price for the exam book from the Research & Education Asso and I passed both exams. Who edited this study guide was my question? I wanted to get my money back, but I didn't and I should have. Also it did not help me pass the test at all, so I gave up on reading it. So future teachers do not purchase this book. You will not pass. It is a rip-off and not worth the money!