Like most people I first became aware of Gary's work via his website. I was immediately struck by his clarity of expression, his thoroughness, and his steady good sense. This was eight years ago now but it was already obvious then that pornography was creating very real problems for many of its users, even if the idea that it could be addictive was still loudly rejected by people who should have known better.

I was lucky enough to work with Gary on the book he wrote based on his research into the scientific literature of addiction in general and pornography addiction in particular. He was a marvellous author; always clear about what he wanted to do, and what he wanted the reader to take from the text. In all the years I knew him he always managed to make things clearer (even when I did my best to complicate things).

I'd like to express my condolences with his friends and with his family. He did fine work, and he helped a lot of people, and that's a lot to say of anyone,

Dan