I have a copy of this book and haven't read it. I keep fearing my background won't be strong enough. I struggle with some high school math (I did get a math degree many years ago but haven't kept up with even basic algebra, and it shows). This book's preface says it complements How to Solve It, another book I've been scared to crack open.

Nonetheless the thinness of the book and the foreword about applications and real world math are very promising. Maybe I should try it out. Any thoughts from someone who has read it?