Your out-to-eat conscience

I'm intrigued by the book Eat Out, Eat Right, which is described in an Amazon.com review as "small enough to fit into your purse or in your briefcase" and comes complete with multiple five-star ratings. I always need an extra conscience speaking into my ear when I'm out to eat, which with my job is often. It includes chain-specific tips and is in its third edition, so it can't be bad, right?