Sean B. Carroll. The Making of the Fittest: DNA and the Ultimate Forensic Record of Evolution.
  
Charles Darwin. Origin of the Species. (pretty much the reason this chapter exists)
   
Richard Dawkins. Blind Watchmaker.  
 
Jared Diamond. The Third Chimpanzee: The Evolution & Future of the Human Animal.
  
Matt Ridley. Genome.  
Robert Wright. The Moral Animal: Why We are the Way We are: The New Science of Evolutionary Psychology