These books are no longer needed as the edition changed after use in the unit certification exam. The version is 7.31. The items are only the books in the images. I believe all four subjects are included. Some books have writing in them, and some do not. *Opened and with writing:* * FAR 1-3 Textbook & Workbook * AUD Textbook & Workbook * REG2 Textbook & Workbook *Unopened and without writing:* * FAR 4-5 Textbook & Workbook * BEC Textbook & Workbook * REG1 Textbook & Workbook Please feel free to comment if you have any questions. #ABITUS