Speak the official scuba diving language. Would you like to be able to always express yourself and communicate with other divers all over the world? Here is your chance. Scubasigns is the definitive guide to all diving hand signals. It will make your dives safer, more interesting, and of course, more fun. It is a book that belongs in every scuba diver's library, no matter whether you are a novice or highly experienced. There are hundreds of signals used by divers worldwide to share information, indicate a problem, or point out something interesting. The authors traveled the world to collect all hand signals used by divers. After years of study, the official scuba diving language was created. There are nearly 500 hand signals in the book that were all photographed under water by some of the world's best underwater photographers, who contributed marine life footage to Scubasigns.