Bernstein M.A., Friedman W.A. Thinking about equations: a practical guide for developing mathematical intuition in the physical sciences and engineering

John Wiley & Sons, Inc., 2009. – 269 pages.
Equations play a central role in day-to-day problem solving for the physical sciences, engineering, and related fields. Those of us who pursue these technical careers must learn to understand and to solve equations. It is often a challenge to figure out what an equation means and then to form a strategy to solve it. One aim of this book is to illustrate that by investing a little effort into thinking about equations, your task can become easier and your solutions can become more reliable. This book can help you gain that intuitive understanding while you acquire some practical mathematical tools.