I thought this book was very helpful, it enabled me to breakdown questions I had no idea of the answer and answer them correctly! I thought at first you could only take the test twice, so I called Kaplan's hotline and was told to key in any arrangement of 10 #'s. Super,super book! The breakdown at the end of the test is so helpful and the book is easy to read and learn from. Kaplan also has a website. Good Luck!