For those interested in the pre-history of the human brain, Ralph Holloway is essential reading. He's put a career's worth of work online in the form of downloadable PDFs. Check out, e.g.:
2009 Holloway, Ralph L., Sherwood, Chet C., Hof, Patrick R. and Rilling, James K., Evolution of the Brain: In Humans--Paleoneurology (PDF). The New Encyclopedia of Neuroscience, in Springer.
2008 Holloway, Ralph L. "The Human Brain Evolving: A Personal Retrospective." (PDF) Annual Review of Anthropology 37.1 (2008): 1-19.
1981 Holloway, Ralph L. Culture, symbols, and human brain evolution: a synthesis. Dialectical Anthropology. 5: 287-303.