FULL-COLOR, LARGE-SIZE BOOK SERIES Volume IV is designed to help learners develop advanced language skills by offering lessons covering a wide range of advanced topics for various purposes. This will enable learners to better understand and engage in conversations on a variety of subjects. Additionally, Volume IV smoothly shifts its focus towards in-depth reading comprehension and improving learners' writing skills.

Each lesson includes multiple-choice questions followed by essay-type questions to evaluate learners' comprehension of the reading passages, reinforce the new vocabulary they encounter in each passage, and facilitate classroom discussions. Furthermore, the composition topics presented in each lesson encourage learners to delve into various subjects relevant to the lesson's content, thus enhancing their writing skills.

The situations selected for this volume are titled as follows:

1. Idioms & Proverbs
2. Multi-Word Verbs
3. Expand Your Vocabulary with Morphemes
4. Recipes for Connoisseurs of Good Food
5. Do It Yourself!
6. Raising Better Kids
7. Employment Agreements & Handbooks for Your Business
8. Business Correspondence
9. Language of the Press
10. Science & Technology
11. Main Political Parties in the USA
12. Explanatory Writing
13. Descriptive Writing
14. Argumentative Writing
15. Cause & Effect Writing