In my opinion, full 5 stars. The book gives a background knowledge of the habits and the impact of our habits. This one gets the first place an awareness of the issue and its implications. Then you get a kind of guide on how you can work with its habits in order to change this.
Genial for all who want to wean something: as smoking, overeating, snacking, ... bad habits Genial for everyone who wants to get into the habit something: regular exercise, healthy eating, reading, ...
