What DWR books exist?

http://www.amazon.com/dp/1590599411
Are there any more DWR books? I use it with Struts for instance when fetching dynamic options from database in e g http://www.montao.com.br/Market/publish.jsp
My own source is open from montao.net, if you'd want to have a look.
Regards,
Niklas Rosencrantz