Books on physics, math.
Having helped people through a wide variety of physics books as MIT curriculum changed what they were using, I highly recommend Halliday and Resnick, as others above have. It’s just the right mix of easy to read, good explanation, and some really great problems. I don’t like Giancoli as much – the writing never really set well. Though Ohanian has great derivations and problems, it may be more than you’re looking for. There’s another called University Physics (Young & Freedman) which is okay, but a little light – it seems to be used more for high school than college physics, from what I’ve seen. On the less-textbook side, the people recommending Cartoon Guide to Physics are aboslutely right, as are the ones talking about Feynman’s lectures.