Comprehensive, Rigorous Prep for GMAT Data Sufficiency!

Every year, students pay $1,000 and more to test prep companies to prepare for the math section of the GMAT. Now you can get the same preparation in a book.

Although data sufficiency problems are difficult, they are very learnable. GMAT Data Sufficiency Prep Course presents a thorough analysis of GMAT math and introduces numerous analytic techniques that will help you immensely, not only on the GMAT but in business school as well.