"Essential Words for the GRE" by Philip Geer serves as a comprehensive guide designed to enhance vocabulary for GRE test-takers. The book presents a curated list of essential words, complete with definitions, usage examples, and exercises aimed at reinforcing understanding and retention. Geer emphasizes the importance of vocabulary in achieving high scores on the GRE, as strong language skills are critical for success in verbal reasoning sections. By providing systematic approaches and practice opportunities, this resource equips students with the tools necessary to navigate the complexities of the GRE effectively.