If you purchase multiple items as a set, we will offer a discount of 5-15% and list them as a combined product. If you wish to purchase items as a set, please let us know in the comments which items you are interested in. This item is eligible for a 5% discount. "Tokyo University of Science (Faculty of Engineering - B Method)" Kyogakusha Editorial Department Price: ¥1980 #KyogakushaEditorialDepartment #Books #Other/Other #TokyoUniversityofScience #FacultyofEngineering #Science #SMART I didn't use this during my exam preparation because I changed my preferred university. There are no writings or noticeable stains, but please understand that this is a casual inspection. I sincerely wish the buyer success in passing their exams.