This is a set of 5 books: textbooks & problem sets and past exam question collections for Denken 3 (Third Class Electrician Examination). - Book Titles: - Minna ga Hoshikatta! Denken 3 (Everyone Wanted! Denken 3) - 10 Years of Past Exam Questions Collection 2024 Edition - Theory Textbook & Problem Set, 2nd Edition - Power Textbook & Problem Set, 3rd Edition - Machinery Textbook & Problem Set, 3rd Edition - Regulations Textbook & Problem Set, 3rd Edition ※ Please note that the Theory book is the 2nd edition because they were not purchased at the same time. All books were carried without their covers, so there are scratches, folds, and some stains. As far as I have checked, there is no writing in the books themselves, so the contents should be clean. (I have removed them, but I apologize if any sticky notes or memos remain.) Please be sure to check the condition in the images. The Machinery text from the past exam question collection got wet and is being dried, hence this condition description. The reference books alone are considered to have some scratches and stains. Please understand that these are used items before purchasing. I will also consider selling the 4 reference books as a set separately depending on the price, but I will prioritize those who purchase the entire set due to shipping costs.