RMH's book is not entirely dedicated to Certificate, it is dedicated to WS-I Basic Profile 1.0 and most J2EE web services API's. It doesn't even have JAXB chapter.
You might want to try
Java Web Services Architecture
by James McGovern, Sameer Tyagi, Michael Stevens and Sunil Matthew ISBN:1558609008
But RMH's book is easy to read and follow if you have exposure to XML and J2EE.