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Title: This book really helps you.
Review: I took the AP United States History test last year and I used the Princeton Review book to help me study. They give you good tips and they give you a good review of the many elements of U.S history. They also give you a sample test and explanations for the answers. I wish they included more than one sample test though. This book was really helpful and I earned a 4 on my AP test. This book is worth buying and studying from.
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