Book excerpt: Deep Into Deco, Revised Edition has been fully updated to reflect the latest research outcomes. - Chapter summaries have been added to give a quick overview of each chapter. - A new section on nitrogen and helium kinetics has been added. - Av second appendix was added for calculating the acceleration in post-diving no-fly time associated with breathing surface oxygen. What makes this book truly stunning is that it is not only straightforward, easy-to-read and understand and free from technical jargon, but it also portrays the latest developments and controversial issues in technical diving. From the early history of experimental trial and error to the latest innovations and changes in the decompression arena, Deep Into Deco, Revised Edition brings the science into sharp focus. Throughout the book are demonstrations of how deco schedules are calculated in commercial software packages, without elaborating on mathematical equations or source code. Also, a grab-bag of additional points of interest that contribute to our current understanding of decompression theory is explored in detail. This book is a must read for any diver looking at understanding decompression theory, how it evolved, what it accomplished and where the latest research is heading.