Watercolor Problems and Solutions

The Six Skills and Other Discussions: Creative Solutions for Technical Divers

Concepts, Problems and Solutions in School Calculus : A Dialogue Approach

Problems and Solutions in Euclidean Geometry

Mathematics and Chess: 110 Entertaining Problems and Solutions

The Posture Pain Fix: How to Fix Your Back, Neck and Other Postural Problems...

Brain-flexing Balance Problems & Other Puzzles

The Solutions Focus: Making Coaching and Change Simple