I've bought this book for my AS level English Literature course (even though it's made for undergraduate study) in order to improve my grade and it's very detailed while remaining compact and easy to carry around. Several texts are covered and it's perfect for a degree or just wider reading for an A level course to boost the grade. It's not suitable for a GCSE though - it's probably too advanced and GCSE English Literature covers set texts, and does not require wider reading.
I found this book to be extremely helpful to me whilst studying a short course in this subject. It was written in a very clear way but would be helpful for anyone who was needing a good overview. The format was excellent,lots of information which was well set out. I think also the book was very good value for money as it helped me a lot. Very glad I bought it