<p>If you take the subject tests in June, you will have completed all your classwork for them. Try taking a practice test for each one about 4-6 weeks before you take them for real. The will give you time to review any areas that need a little world. My son used Kaplan for the math II - went from a 670 on the first practice to a 750 on the real thing. A lot of kids like Barrons - and if you are going for an 800 you should probably use it. But, if you are just going for a decent score (say, 700+), one of the other prep books should be less intimidating. </p>
<p>One final suggestion - try to schedule your test so that you only take two (or one) at a time, and that you leave the December slot open for a retake, if needed (for either the SAT II or I).</p>