I have all my PPL books from 2000 when I took my checkride and now I'm a regional F/O. My friend wants to start training and am wondering if these books are any good. I have the Jep manual, Gleim practical and written test prep. Haven't done part 91 in awhile, has much changed? Has the bank of questions for the written changed that much? Just don't want to send them in the wrong direction.