Completed reading the K & B book twice and did the questions at the back of the chapter. Scored on average for all around 72 percent. Did'nt do well on Inner classes and threads but I reread the chapter and I"m more comfortable now. Now I'm ready to start doing mocks any other advice besides doing mocks. Feel free to post the mocks you did that were helpful. I want to get my certificate before end of the year as a present for myself