I recently read both books, and can confirm that those who read them will have a much better grasp of what is meant by "don't be "that diver".Gabriel, sorry I am late to thread. Though I am biased, new divers can VERY MUCH benefit from two little books available on line as paperbacks or ebooks(cheap). The Scuba Snob's Guide to Diving Etiquette, and the same title, Book 2. The books are intended to be humorous, even sarcastic at times, but contain a lot of good information on how to be a polite and better diver, in and out of the water. Fair disclosure requires I tell you my wife and I wrote them. DivemasterDennis