Ebook: Ultimate GRE Tool Kit: With CD; The Ultimate GRE Advantage

Well, I've found that the math review in this book is so helpful, but it lacks concentration on probability questions. It was good on giving hints in verbal and analytical sections. It contains 3 different full exams, but you will see more difficult quantitative questions in the real exam. Regarding the CD, it was the most helpful feature, it also contains another 3 different full exams just like the real ones. You can practice to answer questions in a timely manner, which is the most effective way to practice. I would recommend also the GRE PowerPrep from ETS, I've only seen its CD, and it was perfect. The big differences between the GRE PowerPrep and this book is that:

1) the powerprep shows real different reponses to the analytical writing, with different scores.

2) you can find more practice questions in the powerprep CD + 2 full exams.