I want to get an electrial license in California, and I'm preparing for the test, i want to know what books are the best for me to prepare for the exam. I'm am currently preparing myself with the pre exam test year 2005, is the prep test good enough for me to take the test and pass the Cali Certified? My friends aslo refer a book called Nec Code Book, but apparently he doens't know what year, I want to ask which year should I use.