The book you hold in your hands is the most comprehensive presentation of diving and is aimed at both amateurs, professionals and instructors.

The first section refers to the matter of the 1st and 2nd stars. Historical evidence, Physics, Medicine, Material, Underwater environment & Dangerous incidents.

The second section is for 3rd star candidates. Advanced topics are developed for Medicine and Physics of diving, Material and specialty diving such as: Diving at altitude, caves, wrecks, night and many others.

The third section presents the correct teaching methods and techniques, being a professional guide for the exclusive use of instructors.

This work ends with a brief analysis of freediving and a trilingual dictionary of diving terminology for clearer understanding of foreign language versions or communication with foreign freedivers.

Dinos Simeonidis was born in 1964 in Constantinople. He studied law at the University of Athens and at the same time became a scuba diving instructor. He taught at the Hellenic Underwater Activity Federation and at private diving schools. He settled for 2 years in Guadeloupe to establish a model diving center. He has published two books on the fauna and flora of the seabeds of the Caribbean and recently, in France, a complete guide to the seabeds of the Mediterranean. He works as an underwater photographer for an international news agency. Specialized in the underwater inhabitants and the problems of the Mediterranean, he writes articles in foreign and Greek magazines.