Dan Heisman 
Looking for Trouble (2nd ed.) 

Identify and Deal with Threats!
This book is written to address and underemphasized area of chess training and study, the identification of and reaction to threats.
For beginning and intermediate-level players, the study of tactics is paramount. Almost all tactics books take the approach of providing a position where there is a forced win, checkmate, or draw.
However Looking for Trouble – now in a revised and enlarged second edition – takes a different tack. It helps you to recognize threats by providing over 300 problems in which you focus on identifying and meeting threats in the opening, middlegame and endgame. The author’s clear explanations are presented in a manner that should greatly benefit players of all levels.
About the Author
National Master Dan Heisman is a chess writer and professional chess instructor in the Philadelphia area. His best-selling chess books include Elements of Positional Evaluation and Back to Basics: Tactics.
Excerpts, including the Table of Contents and the Foreword, of most Russell Enterprises books are available at http://russell-enterprises.com/excerptsdownloads.html.