Updated to reflect the most recent Graduate Record Exams, this manual presents six full-length model tests with answers and explanations. It also offers intensive subject review in all test topics, which include antonym questions, analogy questions, sentence completion, reading comprehension, vocabulary, analytical writing, quantitative comparison, data interpretation, and mathematics. The all-important vocabulary review contains both a GRE high-frequency word list and a 3,500 master word list with definitions.
I picked this book up on the recommendation of a friend. I also tried a couple of books from other test prep companies (primarily when I had learned most of the questions on Barron's CD-ROM). Based on what I've seen, Barron's is far and away the best test preparation if you are willing to sit down and actually learn the material. I bought it primarily for math prep, and it focused heavily on underlying understanding of algebra and geometry. This book devotes comparatively little space to tricks and tips on how to answer questions you don't know, and seems instead to focus on making sure you know the answer. This can be more work, but in the end I think it's worth it.
Good for vocab (though there are FAR more words stuffed into this book than you'll ever see on the actual test). Be prepared- in all regards- for over-preparation with this book.