Hi there!
I’m a full time, professional SAT and ACT tutor and I just wrote a guide to the math sections of the SAT and ACT. What makes this guide unique is that it covers all content areas and then cross references that content area with every single official SAT and ACT practice test problem. The feedback from my students (and from their parents) has been incredible. It’s a very handy tool for systematically studying all content areas or focusing in on your weak points and then getting repetition in, instead of constantly jumping from one problem type to another.
The guide is available for free:
http://www.mattboutte.com/SATandACTMathGuide.pdf
If you’d like a hard copy of the guide, you can get one here:
http://www.mattboutte.com/buy
Feel free to let me know if have any questions or feedback! Thanks!