During the last few years technical diving has become much more popular and has moved into mainstream diving. As a result a significant number of recreational divers are moving towards technical diving. Despite this, there are still many misconceptions about what technical diving actually means and what is involved. Introduction to Technical Diving - An Introduction by Mark Powell gives a straightforward overview of technical diving and dispels many of the myths surrounding this area. It explores what is meant by technical diving, what is involved, the risks that arise and how you can move towards this type of diving. Section one describes technical diving in general and illustrates some of the differences between technical and recreational diving as well as explaining some of the things that recreational divers can learn from technical divers. Section two explains some of the ideas behind this form of diving. It defines exactly what we mean by technical diving as well as why it has become so popular. This section then explains how to make a start in technical diving and the type of divers who tend to get into technical diving. For these divers the second section then goes on to explain what to expect from a technical diving course. Finally this section discusses how accident analysis has been used to shape some of the concepts in technical diving as well as some of the mental aspects of this type of diving. The third section then goes on give an overview of technical diving equipment and explains why this is different to the equipment used in recreational diving. There are many different opinions about technical diving equipment and this section of the book lays out the advantages and disadvantages of the various options so that divers can make an informed decision about their equipment choices. Topics such as twinset configuration, Hogarthian gear configuration and choice of stage cylinders are all covered for the open circuit diver. The fourth section c ...