This is a set of 4 reference books for classical studies: "Kotentankyu" (Classical Exploration) - Japanese Classics Edition and Chinese Classics Edition, "Genshoku Ogura Hyakunin Isshu" (Color Illustrated One Hundred Poems by One Hundred Poets), and "Key & Point Miru Miru Oboeru Kobun Tango 300+30" (Key & Point: Quickly Memorize Classical Japanese Vocabulary 300+30). These books are helpful for studying. [Product Name] Kotentankyu Japanese Classics Edition - There are markings on 2 pages. (See photo 2) [Product Name] Kotentankyu Chinese Classics Edition - There are markings on 4 pages. (See photos 3, 4, and 5) [Product Name] Genshoku Ogura Hyakunin Isshu - There are circles drawn around numbers in several places. (See photo 6) - The cover is torn and has been repaired with tape, but this does not affect the contents. (See photo 7) [Product Name] Key & Point Miru Miru Oboeru Kobun Tango 300+30 - There is no writing in this book. Thank you.