I thought readers would be curious as to the "top 10" clicks-throughs on this site:

The Red Queen : Sex and the Evolution of Human Nature
Survival of the Prettiest : The Science of Beauty
The Blank Slate: The Modern Denial of Human Nature
The Real Eve: Modern Man's Journey Out of Africa
The Journey of Man : A Genetic Odyssey
The Seven Daughters of Eve
The Mating Mind: How Sexual Choice Shaped the Evolution of Human Nature
Why Sex Matters: A Darwinian Look at Human Behavior.
The Great Human Diasporas: The History of Diversity and Evolution (Helix Books)
The g Factor: The Science of Mental Ability (Human Evolution, Behavior, and Intelligence)

Now, all of those books except one (to my mind) are either:

1) widely cited on this blog through links in the entries (like The Mating Mind).
2) widely known (like The Blank Slate).
3) obviously topical in relation to particular interests of bloggers (like The g Factor).

The great exception to me is Survival of the Prettiest : The Science of Beauty. This book is consistently one of the top click-throughs. Why? I would assume that the topic is appealing to people, even in the context of book lovers, looks & sex are still a priority.