I plan to take the MCAT this coming May and I must say, these books are incredible. Due to my financial situation, I can't afford to take the Kaplan courses so purchasing these books was the next best thing. I have glanced over all the books and have currently started delving into the general chemistry book, it has become an invaluable asset to me. The books relate difficult concepts with and without the scientific jargon necessary for the MCAT. The books cover material that was loosely covered in my studies here at college. I really like how it gets straight to the point and how there are practice questions at the end of each chapter with complete explanations of both correct and incorrect answers. If you buy nothing else in preparation for the MCAT, buy this!