This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I have successfully completed OCJP6 certification, and now planing to go for OCMJD. But don't know too much about the preparation of OCMJD, please guide me about the OCMJD and also if there is any books or study material available except oracle's own study materiel. Is it compulsory to purchase study material from the oracle for OCMJD or without purchasing the study material, I can also appear in the exam?.