The Theory of Recreational Scuba Diving: Prepare for Your Dive Professional Exam, Be an Informed Recreational Scuba Diver‪.‬

Prepare for your dive professional exam, be an informed recreational scuba diver! Many of you will be preparing for an exam to become a dive professional. This book tells you all you need to know, no more, no less.
We will start off easy with a short introduction to the dive environment. Next, we go on with the physics of diving. We have a look at equipment. In the physiology of diving, we will have a look at blood, hearts, lungs, ears, and all the things that can go wrong. Finally, we can bring it together and talk about decompression theory.
We did even more. We made an on-line course with videos and many more exercises to help you study. This is also the place where people all over the world taking this course help each other with questions and answers. The facebook page is called easydivetheory.