Acknowledgements

The authors wish to express their sincere gratitude to all those who have contributed to this project, which would not have been possible without their assistance.
Special thanks to Mal Howarth, a Director of Associated Underwater Scuba Instructors (AUSI), and Michael Lim, T-Dive in Singapore. Their chance meeting in Kuala Lumpa, Malaysia at ADEX 2001, gave the opportunity for E-Dive College (www.edivecollege.com), the world's first on-line dive school, to become a reality and hence provide the final motivation to produce this book.

We also offer our sincerest thanks to Dr Owen Wright, a long time friend and very experienced instructor, whom for years urged us to write a follow up to International Scuba Diver.

Thanks also to John Lippmann of Divers Alert Network Southeast Asia-Pacific (DAN SEAP); Russell Kitt of Oceanic Australia; Dick Whitaker of Survival Offshore Systems; and instructors Owen Wright, Avril Brown and Harry Gorfine for their expert comment.

Thank you to Oceanic Australia for equipment images, Apollo Australia for illustrations, Ralph Roob for the technical drawings used in the scuba mechanics section, Jay Town and John Lippmann for their photographs and Jane Kempe for her illustrations.

Our sincerest thanks to those who have toiled over the many manuscripts: Owen Wright, Harry Gorfine, Avril Brown Anthony Mignani, Alex Giannuzzi, Mal Howarth, Jeff Jones, Emma Roberts, Russell Kitt, John Lippman, Dick Whitaker and especially Peter Coster.

Finally, thank you to Kim and Paul Blain of Press Here Pty Ltd who accepted our extremely tight deadline and did the job so well!