Foreward

Anyone seriously involved with diving, professional or amateur, has dreamed of the magnum opus, the great diving reference book which would contain all the calculations and formulae that a diver would ever need to know.

Paul Williams, with his strange cocktail of life experiences as a qualified teacher, offshore Life Support Supervisor, diving school instructor and computer specialist, has all the qualifications for such a grand project.

Within his unconventional approach, he has brought a fresh perspective to the subject of diving physics and presented it in a user friendly format. This book is the most original and useful that i have seen