Market is flooded with a huge range of books that offer the material required for the preparation. The book you select for should have a vast number of practice sets and explanatory answers to each practice paper. It will be highly recommended if you purchase a book that has a copy of CD or DVD with it which can enhance your learning at computer. Here are few of the books that are recommended for the examination. These books can be purchased online or from a nearby book store. There are websites which offer old books at low prices which are being auctioned by students who had appeared for the exam earlier.