Price reduced. Please consider. "University Entrance Exam All Level Problem Collection English Grammar 1 Basic Level" Mitsuru Kozaki List price: 900 yen + tax From textbook mastery to exam preparation Easy-to-understand English Grammar Masashi Kubono List price: 1900 yen + tax This is a set of two books. I quickly checked inside, and the "All Level Problem Collection" seems clean, with no writing or folded pages. "Easy-to-understand English Grammar" has some underlining and circling on a few pages (I confirmed 5 pages), as shown in the 7th and 8th photos, but there are no folded pages and it seems clean. (I apologize if I missed anything in either book)