Hauser, M. The Evolution of Communication. Cambridge, MA: MIT Press, 1996. A synthetic overview of communication in humans and animals.
Smith, J. Maynard. Evolutionary Genetics. New York: Oxford University Press, 1990. A more technical introduction, with an emphasis on mathematical modeling.
Pinker, S. How the Mind Works. New York: Norton, 1997. A synthesis of cognitive science and evolutionary psychlogy.
Barkow, J. H., L. Cosmides, and J. Tooby, eds. The Adapted Mind. New York: Oxford University Press, 1992. An influential collection of papers on general theory and concrete research areas, including a manifesto for evolutionary psychology by Tooby and Cosmides.
Boyd, R. and J. Silk. How Humans Evolved. New York: Norton, 1996. Excellent textbook on paleoanthropology, primatology, and ethnography relevant to human evolution.
Ciba Foundation. Characterizing Human Psychological Adaptations. Papers and discussions, from a recent conference. New York: Wiley, 1997.
Betzig, L., ed. Human Nature. 1996. Classic papers, with critical Commentaries.