The NAS (National Academy of Sciences) just released another addition of their Science, Evolution and Creation book. Its like a basic science primer on the strengths of science and how the theory of evolution was constructed. It also is a great evaluation of the faults of the arguments of creationists. One of my pet loves is Science Education and this book as an introduction to people that are not knowledgable about science and evolution is great. We need to get more books like that out there.
Take a peek at the free 8page primer.