1) The author is a really kick-ass writer. Really. Regardless of whether the subject or findings could have been crap, the author did a really good job in presenting prose that was smooth, descriptive w/o being overboard that kept you on the edge of your seat and wanting to read more. The vocabulary could have been at a higher-level (I'd estimate this vocab level to be at around 5th grade), but nevertheless, he did well with whatever he had.

2) The book is organized well. By that, I mean that he presents his findings in chunks that are easy to digest. For example, he would present one example, bring that to a climax, present another example, stop, then present a study dealing with either one or the other, and then give a brief conclusion. This ties back in with the first point - the author being a really, really good writer.

3) I like how the author keeps his personal opinions out of the mix, for the most part. He does manage to throw in there some endorsement for the Democratic party, which I personally do not like to come across in my literature, whether Democratic or Republican, or, for that matter, Socialist. I prefer not to have writer's political agenda try to influence me on a non-related subject.

4) I am a fan of the many societal and corporate examples given to us. While I am not 100% convinced as to a lot of his theories, such as the poorly educated teachers leading to higher infant mortality (b/c in rural areas, apparently the girls weren't eating well prior to conception b/c of lack of knowledge). Seriously, a lot of factors could have contributed to this: lack of family, economic, emotional support prior to childbirth; traditional (religious) views on premarital sex in rural areas, especially back in the day; etc. But, for the most part, the examples and test results presented were thought-provoking.

5) I am a HUGE fan of how this is a behavioral science book and not a motivational "how to" book, a genre I despise. Author presents a habit experiment he conducted on himself so that readers can construct a similar habit experiment if they so desire. That was kind of fun and interactive.

6) I was not really convinced of the "cue, routine, reward" loop he presented in the first third of the book, especially since he seemed to be picking the "cues" out of thin air, especially when it came to advertising. That example was not really convincing for me.

7) On the whole, this is a really interesting book, read very fast, left the reader with positive feelings. Thought that the historical/societal examples could have been more international in scope, but it was pretty good.