Instruct: Classify a given Amazon review as either positive or negative.
Query: Best book to get you into OO class-level design concepts

This book was a significant stepping stone in my development in OO thinking.This book immerses you in the thought process of OO. If you feel that you haven't quite clicked with OO design, and pattern books are leaving you puzzled, then read this - give it a month - then read it again.The you'll then probably think many of the GoF patterns quite obvious, and wonder what all the fuss was about. For example the Bridge pattern, and the Factory patterns are just implementing plugability concepts of Ch 3.