The 5 lb. Book of GRE Practice Problems by Kaplan, published by Manhattan Prep, is a comprehensive study guide containing over 1,400 practice problems in both book and online formats. With 1044 pages of material, this fifth edition is designed to help students prepare for the Graduate Record Examination. The book measures 8.38 x 2 x 10.88 inches and weighs 2.31 pounds, making it a convenient and substantial resource for students looking to improve their GRE scores. The practice problems cover a variety of topics and difficulty levels, providing ample opportunities for students to review and practice.