This is one subject where you need to be careful to use the very latest textbooks. I borrowed my girlie's old air law tapes to play in the car so I could absorb the information as I drove to and from the office..... not so clever.
I didn't realise so much had changed in recent years until I read the exam questions. I did manage to scrape through and now I can forget the largely useless bits such as who has jurisdiction over this and sovereignty over that.