Coming from someone who underestimated this test, Examzone is the most efficient way to become licensed. You can spend hours cramming over other dry, exhausting material, but those are hours you are never getting back. After an unsuccessful attempt, and my job on the line, I picked up pass the 65 and to my delight found that Robert himself offered private tutoring. His free weekly conference calls helped me stay on track. The textbook is very conversant, and focuses on the material you need to know to pass. This will teach you how to navigate and approach the test, which made the difference for me.