My son bought this at cram school, but apparently he was using a copy, so he didn't use the main book. I've checked multiple times for any writing, but please understand that I may have missed something. The contents are unused, but there are some folds, so I've marked it as "Like New." [Overview of the Textbook] This textbook is for junior high school students and covers a wide range of English learning, from basic to advanced. In particular, it is rich in content for learning everyday conversation and basic grammar. [Features of the Support Book] A support book is included, containing practice problems and explanations to supplement the learning content. This allows for a deeper understanding. [How to Use] Each unit is structured in a step-by-step manner, allowing learners to progress at their own pace. It is especially easy for beginners to work through. - Title: Junior High School Essential Textbook English 1 - Publisher: Tokyo Shoseki - Series Name: NEW HORIZON - Support Book: Yes - Number of Units: Multiple (e.g., Unit 0, Unit 1) Thank you for looking.