Last friday I got the book "Mastering Xpages" This is going to be very good stuff I hope.
The reviews are great. Just browsing thru the pages the books seems promising. This book can also be used by anyone not familiar with Lotus Domino Designer or the IBM Lotus Domino document-centric data model.
I'we worked my way thru chapter 3 and moving forward. Beeing qurious about the history of Xpages and it's Java Server Faces origin, I'm now on Chapter 5.
Ed Brill has says something about this book on his blog.
Also xpages.tv is a good resource for quick show and tell instructions.
Go buy the book.