This revised book is specifically designed for ESL students preparing to take the TOEFL and features updated vocabulary that is seen most often on the exam. This book provides a decent starting point for those whose vocabulary repertoires are not advanced. I compared the vocabulary in this book with those in other similarly rated TOEFL books/box sets and found that 90% of the words in this did not appear in others.
This is great to improve your vocabulary, but it’s a way too much for the exam. It’s a great companion but doesn’t be overwhelmed. Use it as a guide, don’t try to memorize everything!