GRE Books are the best bet to start your GRE Preparation but not sufficient. To complete your GRE Preparation, you should practice lots of Online GRE Tests. First let’s have a look at some of the GRE Books available in the market:

• GRE: The Official Guide to General Test
• Kaplan GRE Exam
• The Princeton Review: ‘Cracking the GRE’
• Barron’s “How to Prepare for the GRE”

Online GRE Tests No doubt GRE Books are good but it’s important you get familiar with the GRE exam format. Since GRE exam is a computer-based test so you should practice lot of online GRE tests to boost your GRE preparation. There are couple of ways in which you can get online GRE Tests:

• Purchase GRE CD software to practice full length tests
• Download GRE tests from sites like Rapidshare. But remember this might be illegal.
• Search for Sites on Google offering FREE online GRE practice tests. One such site is Jumbotests.com .

Jumbotests.com has free practice tests on GRE Analytical Writing, GRE Quantitative,
GRE Verbal and also GRE Full Length Test.