20. Survival of the Prettiest: The Science of Beauty, by Nancy Etcoff deals with evolutionary psychology, biological responses, and the ways that commerce takes advantage of these impulses. Some chapters were more interesting than others.
21. U-Turn, by Bruce Grierson is about epiphanical moments that result in reversed decisions, lifestyles, careers, or principles. Though the anecdotes are interesting and involve people from all walks of life, levels of success, and age groups, I found myself skimming after the first hundred pages. The book just wasn't what I expected.