Essential guide to the steel square

This is a great book for the "back to hand tools" movement. It is the only book that unlocks the secrets of the steel square, a valuable time-honored tool. Every woodworker owns a steel square, but few know all that they can do with it. This book shows how valuable the steel square can be in answering common geometry and layout questions for any project. It's loaded with diagrams, illustrations, practical advice, and skill-building exercises.