This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
For Messaging and Integration,is the Certification book by Mark Cade sufficient or do we also need to go through the Messaging chapter in Certification book by Paul Allen?
If so then what are the key subtopics which I need to brush up in Paul Allen book's Messaging chapter?