**Manual Only**

See "Equipment Diver Specialty Class" for class 

This 350-page, full-color book is a must-have for any dive fanatic and makes a great gift. When bad weather keeps you from diving, explore the other 70% of the earth from your favorite comfy chair.

The Encyclopedia of Recreational Diving includes sections on:

• Dive travel destinations around the world
• Military, scientific and commercial diving overview
• The history of diving
• Underwater eco-system profiles from around the world
• Diving equipment overview
• Equipment selection and care
• Specialized diving equipment
• Gases you should know
• Decompression physiology
• Circulatory and respiratory systems and diving
• Physiological responses to pressure change on body air spaces
• Comprehensive index