A lot of people knock self-help books——and in many cases, they're not wrong. So many self-help books suck. Personally, though, I've found several that have helped me a lot. Julia Cameron's The Artist's Way, Kenneth Christian's Your Own Worst Enemy, and Stephen Pressfield's The War of Art are just a few of the self-help books I go back to again and again when I need a tweak of inspiration.
What about you? Do you read self-help books? If so, which ones have helped you? How have they helped you? For me, the biggest benefit I've gotten from self-help books is that they have helped me to train myself to think differently. They've helped me to think more positively, which in turn helps me to actually do positive things instead of sitting around complaining about my life. (I'm not totally cured of this, but I've come a long way.)
Aside from The Secret,—which is BS, IMHO—what helps you?