A lot has happened in the search for the ancestors of humans since this book was written in the 1980s. It still provides a great starting point for anyone who is curious, though, and it is written by one of the most highly regarded paleoanthropologists to this day.
Leakey, Richard E. Making of Mankind. New York: E. P. Dutton, 1981.  6-256 in dark red-brown cloth over boards with title, etc., gilt-stamped to spine. DJ edges worn with very short tear at head of spine and some chipping at head and tail of spine and corner tips. Cover edges turned just a wee bit at head and tail of spine. Pages clean. Binding tight. Anthropology ECB10274 SOLD!