There are no hEAD FIRST series for webservices.
For other exams llike scwcd, scbcd, head first are there.
Guess since ws deals with interoperability, single HEAD IS NOt enough.
I guess Great Heads will join and publish in future.
Till then,we have a master book by Mr.Richard Monsol Haefel (popularly called as RMH)
J2ee webservices.
For more information,kindly refer scdjws links in the forum mentioned at the top.