This book has been written for anyone who is planning to take the TOEIC®, and who wants to practice and develop their vocabulary. A greater command of vocabulary is one of the key factors that will help you raise your TOEIC® score. You should not go through the exercises in this book mechanically. It is better to choose areas that you are unfamiliar with, or areas that are of specific interest or importance to you. Each exercise is accompanied by a full answer key at the back of the book. This key also gives you other information about particular vocabulary items (for example, words with similar meanings, alternative words and expressions, etc.) that are not covered in the exercises themselves.