I'm currently reading Joe Navarro's "What Every Body Is Saying" and its quite fascinating. Learning all about body language and how to read people is giving me a ton of insight on how to succeed in all sorts of social and business situations. I recommend it to everyone.

I'm wondering if anybody has any other recommendations of excellent self improvement books that they have read in the past or are currently reading? I need something to read after I finish this book, I'm about halfway through.