Author of the XSS Book
It is probably about time to announce that I am one of the authors of the upcoming XSS Book, RSnake talked about a month ago on his blog. The complete list of authors is: Seth Fogie, Jeremiah Grossman, Robert Hansen, Anton Rager and Petko Petkov (a.k.a me).
The book is going quite well and I hope that it will provide a good starting point for those who are interested in getting into client-side web security but don't know much about it. The book is also designed to cover some advance topics for those who want to expand their current knowledge. I guess everybody will be happy. You can preorder it from Amazon. This is the only book on Cross-site Scripting attacks and related topics, for now, so I hope it will be a success.