No cover. Please note that these are not mini-sized. These books were read often by a child, so there are some minor stains and signs of use. (Except for "The 100-Story House," the books are relatively clean. The blue photos are all of "The 100-Story House.") Please purchase if you understand that these are used items. ↓ A set of 4 picture books with fun content, each depicting 100 themes. - Title: Chika 100, Umi 100, Sora 100 (Underground 100, Sea 100, Sky 100) - Author: Yoshio Wada - Series: Kaiten Ehon (Rotating Picture Book) - Quantity: Set of 4 books - Language: Japanese #100-Story House