Vocabulary strength is not everything in the GRE verbal section but it really helps decipher many of the questions asked. This vocabulary book is not for everybody–mainly for those whose vocabulary is moderate to medium-strong. The 600 or so words are commonly seen on the GRE and are taught with simple definitions and sample sentencse that are very illustrative. You get a small “workout” on each word that then finds itself in short quizzes. A GRE “Hit Parade” list of commonly used words on the GRE is included as is a workout on word roots. Roots, i.e., word piece,s are a good way to acquire more words by “piecing” together meanings if word parts. This book does not present words from the higher scoring end of the GRE so if your vocabulary is already substantial you may want to look at Word Power Made Easy below. $13.75 includes a 10% discount and WA tax.