Pretty fascinating stuff, especially since my college major is related to psychology. People who aren't into psychology or anything related won't be able to appreciate it that much. Anyway, there are some parts where it goes into linguistics, creativity, mathematics, statistics (which I loved since this particular subject is also related to my major) and logic.

The thing is, the first half and the (first few chapters of) second half of the book are really fascinating. I find the last few chapters a bit...trite, in my opinion (and the reason it took me a long time to finish this). But, that's just me.