I took the PCAT on 10/23/04 and this book completely screwed me over. Nothing in this book was even on the test. This book is wayy to easy. The PCAT was MUCH harder, comparable at a graduate level. You need to know, calculus, physiology, and organic chemistry, there's not enough time even to think because you need to answer 58 questions in 30 minutes. Use the Kaplan one. This one will give you a bad score GUARANTEED!