Freakonomics: A Rogue Economist Explores the Hidden Side of Everything by Steven D. Levitt, Stephen J. Dubner (2005)

The "economist with no unifying theme" explores various real life situations with the perspective of incentives triggering these said behaviors. If nothing else, the incentives discussed at work, unify the the discussions around the membership structure and finances of a crack gang, the relationship between Roe vs. Wade and the decreasing US crime at the end of the 1990s, cheating teachers and test scores, cheating in professional sports (like sumo) and child names selected (and they pretend to mean to parents).