I really did LOL at this, because I was expecting one of those lines like, "... be nice to everybody because you never know what they're going through..." The actual line was
It really depends on which topics you need to review. I needed a few chemistry concepts more than anything else - but the cell structure, mitosis/meiosis, etc. were good refreshers as well. I've been...
I too am using the ATI study guide - in addition to any other practice exam book I can get my hands on. I'm finding it most helpful to watch some reliable videos (e.g., Khan Academy, Bozeman Science)...
For biology and chemistry, I highly recommend Bozeman Science. You can search for these videos on YouTube. I'd say that many of them are comparable to Khan Academy in quality, and a bit more visually...