Gymnastics rings are becoming increasingly popular as they are the ideal training tool for long-term and joint-friendly muscle building. The instability of the rings not only strengthens the muscles but also promotes muscle coordination. Mike Gillette's book offers excellently illustrated and easy-to-follow exercises for ring training. Following an introduction to the benefits and features of gymnastics rings as a training tool, there are over 30 exercises—ranging from push-ups to squats, in both horizontal and vertical positions. Each exercise is presented in three variations, allowing for an easy start as well as an increase in difficulty. The exercises are mostly performed with one's own body weight, and advanced users can add weights to enhance the effect. A summary at the end provides ideas for creating effective workouts.