Michael Smith reported that the third edition of "DocBook XSL: The Complete Guide" by Bob Stayton is now available!
If you spend any time on the docbook lists, you will quickly realize that Bob is THE go-to guy for complex DocBook problems, with Michael and Jirka closely behind.
If you spend any time with DocBook stylesheets, you should also quickly realize that YOU NEED THIS BOOK!
Bob has added over 150 pages with this edition, so it's by no means a minor rev.
Check it out at: http://www.sagehill.net/docbookxsl/!
See also: DocBook