I just had an amazing experience reading Before the Dawn by Nicholas Wade.  This book is about how genetics can help us recover the history of man.  I learned so much from reading this book and I strongly recommend it.  It is easy to read and does not require a deep knowledge of genetics. Combining this book with Jared Diamond’s great book Guns, Germs and Steel, really gives one a great understanding of the human history especially the last 50,000 years.