<p>For the SAT, everyone recommends the blue book or CB material. How about for subject tests? Are other test prep companies reliable?</p>
<p>Anyone? 10char</p>
<p>There’s a College Board Subject Test book that has (I believe) 1 practice test for every subject test; that book is often recommended to prep with, but it doesn’t really offer any review (if any, I’m not sure) so you could use other prep books to prepare. Which prep book you should use depends on the subject test you are taking.</p>