I read the review for this book and was put off buying it, but when I did come across a copy it was BRILLIANT!! It isn't a summary of theories and studies like in the other revision guides (I use the Letts one), but it tells you how to use your knowledge effectively in the exam. There is lots of great advice about structuring answers, and I feel a lot more confident about tackling the A2 exam now. For the money this is a brilliant aid for revision, and I only wish I had used the AS one last year. I feel this will make a huge difference in the grade I will get, which is just as well as I need an A or a B!