Starting with the computational theory of the mind (where specialized brain components perform specific tasks, and the pre-frontal cortex serves as a general processor) and continuing on to emotions and social interactions, Pinker details the current understanding of the human brain. Along the way, you learn how to see stereograms (pictures with competing depth reference points, so you have to unfocus your eyes and slowly refocus to see the three-D image), how you learn mathematics (chunking = building ideas on top of related ideas), why you should read TheSelfishGene by Richard Dawkins (thinking of society in terms of genes trying to propagate explains many interesting things from Dating 101 to why 70's bathhouses were so Frisky).