<p>I used Barron’s for all three and thought it was enough. I also used a Princeton Review Physics book and a Kaplan SAT I book, but in hindsight, Barron’s is enough for the sincere student. Also, make extensive use of online resources. Plenty of those out there.
Get yourself a good vocabulary list (available online). By “good” I mean one where you come across a few words which you know, some which you know but aren’t sure about, and some which challenge you. There isn’t any point in learning up pages of “high frequency” SAT words unless you have significant time in hand.
And start early.</p>