Yep I agree about the Excel Art Revision book, a huge help, as well as looking at other ppl's exam responses from previous years. I guess it helps if you are ok at writing essays and being able to express yourself in writing... even if it means blabbling on about something you have NO IDEA of. Like for eg, I managed to blab on about some bizarre installation in my Yr 11 Yearly and I honestly had no idea about what the painting was about but I eventually got full marks for that question! I think knowing about art jargon etc also helps.