Its never too early or too late to start working on your interview!!
Interview Seminar in Santa Monica
DomBel, you are absolutely right. It is never too early. I recommend applicants start preparing for their interview when they start preparing for the written exam. As one candidate said, "The test took a lot of work, but the interview took much more." East and West coast interviews are slightly different, but the basic idea is the same. There are not many prep books out there. The primary ones take very different approaches and, as such, are all valuable. I suggest you check out www.publicsafetyprep.com.