The Official Guide for GMAT Review

Official GRE Quantitative Reasoning Practice Questions

The Official Guide to the GRE Revised General Test, 2nd Edition (GRE: The Official Guide to the General Test)

Official GRE Verbal Reasoning Practice Questions

5 Lb. Book of GRE Practice Problems: Strategy Guide, Includes Online Bonus Questions

McGraw-Hill's Conquering the New GRE Math

Barron's New GRE: Graduate Record Examination (Barron's GRE)

Official GRE Verbal Reasoning Practice Questions, Second Edition, Volume 1

GRE Math Prep Course (Nova's GRE Prep Course)

GMAT Advanced Quant: 250+ Practice Problems & Bonus Online Resources (Manhattan Prep GMAT Strategy Guides)

5 lb. Book of GRE Practice Problems: 1,800+ Practice Problems in Book and Online (Manhattan Prep 5 lb Series)