This vocabulary building program is specifically designed for ESL students preparing to take the TOEFL. The book presents an organized list of vocabulary words with definitions, sample sentences, and practice exercises for 500 need-to-know words. It also provides detailed advice on ways in which students can expand their English language vocabulary. Students can test their mastery of TOEFL vocabulary by taking the included practice test with answer key, which is designed to help students evaluate their progress, and increase confidence in their vocabulary skills.