What is a good prep book for SAT subject tests?

Barrons is best for Math Level II- it'll over prepare you, which is good for the Math test (better over prepared than under). Every student I know who scored an 800 on the Math II used Barrons. Princeton Review is great for Literature and good for Chemistry. If possible, also buy the official SAT subject test study guide from Collegeboard.

Good luck!

List of the best SAT subject Test prep Books for all subjects.

1-English Literature: Barron's SAT Subject Test: Literature, 5th Edition

http://amzn.to/1kuQi41

2-U.S. History: Kaplan SAT Subject Test U.S. History 2013-2014

http://amzn.to/1gPlNpD

3-World History: Cracking the SAT U.S. & World History Subject Tests, 2013-2014 Princeton Review

http://amzn.to/1oUpHhf

4-Mathematics Level 1: Cracking the SAT Math 1 & 2 Subject Tests, 2013-2014 Princeton

http://amzn.to/1pGD7gu

5-Mathematics Level 2: Barron's SAT Subject Test Math Level 2, 10th Edition

http://amzn.to/1oGcR8P

6-Biology E & M: Cracking the SAT Biology E/M Subject Test, 2013-2014 Edition Princeton Review

http://amzn.to/1kuRBjw

7-Chemistry: Kaplan SAT Subject Test Chemistry 2013-2014 (Kaplan SAT Subject Test Series)

http://amzn.to/1kWymio

8-Physics: Barron's SAT Subject Test Physics

http://amzn.to/1pGFMH9

9-Spanish and Spanish with Listening: Barron's SAT Subject Test: Spanish with Audio CDs, 3rd Edition

http://amzn.to/1wFTEWZ

10-All tests in general: The Official Study Guide for ALL SAT Subject Tests, 2nd Edition

http://amzn.to/1gPwaK0

Most of the prep books you will find will be very much the same. What is really going to make a difference is the method in which you study. Start early, and review often. The ACT and the SAT are both tough tests with a pretty strict time limit. The best thing you can do is review often, take a lot of practice tests, and work within the time limit. Check out the article for more info.

"100 words every high school student should know." is very good for the vocabulary, and there is actually a book called SAT practice you should look at.