Book excerpt: Explore the underwater world From basic diving certification topics and techniques to advanced technical diving, Complete Diving Manual has everything you need—all in full, stunning color. Whether you're an experienced diver or haven't yet gotten your C-card, your passport to diving expeditions is here, including: Choosing, using, maintaining, and storing equipment Basic training, from pool to open water Diving physiology, including buoyancy, behavior of gases, the bends, and hypothermia Dive planning, including decompression dives Safety and first aid Diving reefs, wrecks, and caves; warm and cold water; boat diving, and more Diving for marine biology, archaeology, photography, and videography Prime locations for the best diving excursions worldwide With the Complete Diving Manual, you can investigate every aspect of this great sport. Let the adventures begin. Jack Jackson is an advanced diver and award-winning photographer who has dived hundreds of exotic locations around the world. He ran a sport-diving operation in the Sudanese Red Sea for 12 years. His previous books include Diving with Sharks and Dive Atlas of the World.