Bet the odds on Teach Yourself Teach Yourself Statistics introduces you to the key concepts and principles of statistics. It will help you understand statistics as they occur in your everyday life.
I did take a couple of Statistics based courses back in college. So, I read this as a refresher and found the explanations to be better than many of the books that I referred back them. Of course, the book does not go in too deep, but the fundamentals are clearly detailed with examples.
I really loved the chapters on statistical significance testing (explanation using legal analogy) and the one about 'lies and statistics' (sort of like a summary of How to Lie with Statistics by Darrell Huff).