General Evolutionary Theory
The Selfish Gene by Richard Dawkins (1976, Oxford University Press).
The Evolution of Everything by Matt Ridley (2015, Harper Perrenial).
The Red Queen by Matt Ridley (1993, Viking Press).

Primers for Evolutionary Psychology
The Blank Slate by Steven Pinker (2002, Penguin Publishing Group).
Sex, Murder, & the Meaning of Life by Douglas T. Kenrick (2011, Basic Books).
A Natural History of Human Thinking by Michael Tomasello (2014, Harvard University Press).

Primers for Behavioural Ecology / Primatology
Demonic Males by Richard Wrangham & Dale Peterson (1997, Bloomsbury Pub Ltd).
Sex and War by Malcolm Potts & Thomas Hayden (2010, BenBella Books).

The Mating Mind by Geoffrey Miller (2001, Anchor Books).
Evolution of Desire by David M. Buss (1995, Basic Books).
Sex, Genes, & Rock 'n' Roll by Rob Brooks (2012, New Hampshire).

In Your Face by David Perrett (2010, Red Globe Press).
Survival of the Prettiest by Nancy Etcoff (2000, Anchor Books).

Social Psychology
Social Leap by William von Hippel (2018, HarperCollins).
Moral Origins by Christopher Boehm (2012, Basic Books).

The Language Instinct by Steven Pinker (1994, William Morrow & Co.).

The Rational Animal by Douglas T. Kenrick & Vladas Griskevicius (2013, Basic Books).
Spent by Geoffrey Miller (2010, Penguin Books).

Comparative Psychology
The Gap by Thomas Suddendorf (2013, Basic Books).
A Primate's Memoir by Robert M. Sapolsky (2001, Touchstone).

Noble Savages by Napoleon A. Chagnon (2014, Simon & Schuster).
War Before Civilization by Lawrence H. Keeley (1996, Oxford University Press).
Hierarchy in the Forest by Christopher Boehm (1999, Harvard University Press).
The Hadza by Frank W. Marlowe (2010, University of California Press).
Catching Fire by Richard Wrangham (2009, Basic Books).
If there are any other popular science books you think we should list here, let us know.