I passed my Air Law this week. My tips? As the others have said, making copious notes is the key. With different highlighting colours, draw spider diagrams (as a visual learner this really helps). Stick post its all over your kitchen wall and cupboards...another way I learnt.....write key fact cards with pertinent nuggets on.
Use Airquiz online - this is an indespensible tool I find and really shows your improvement and the areas which you need to study more. Also, PPL Perfector is great as the example questions in there are some of those which you will actually find on the paper (hee hee
Abive all, don't despair! I did when I first looked through the Air law jungle, but using these methods and a bit of patience, it soon sinks in.