The Power of Habit: Why We Do What We Do in Life and Business is a fantastic book! After hearing just a smidgen of a radio interview with the author, I put myself in the library queue.
Charles Duhigg, a journalist, has written about the habits of individuals, organizations, and societies. He explains scientific research about craving, the structure of habits, and how habits can be created or changed.
This might sound dry, but it definitely was not. Mr. Duhigg told story after story after story--about research subjects, anonymous individuals, and well known people and companies. I actually considered this book a page turner. As each vignette ended, I wanted to read the next little section. And the next. And the next.
Although The Power of Habit is not a self-help book, it explains enough (in the text and a short appendix) to give the reader tools for analyzing and transforming her own habits. I'm in the process of changing one of my keystone habits right now. The early results are good--hopefully I'll share more soon.