【Set of 4 Books】 A set of 4 books from the "Biographies You Can Read in 10 Minutes" series and the "Why? How?" series. This is the price for the set of 4. ★Please choose your favorite 4 books. ★I will create a dedicated listing for you, so please let me know in the comments section. ★For a different number of books, please consult with me. The books themselves are in good condition overall, with no yellowing. The covers may have some scratches or wear depending on the book. Please check the photos. 【Biographies You Can Read in 10 Minutes】 ☆For 1st and 2nd graders 【Why? How?】 ☆Please check the titles in the photos. 【Important! Please check the photos】 ★"Animal Stories" and "Social Studies" have slight yellowing on the top of the cover. ★"Science Stories" has some soiling on the top of the book. ★"Proverb Stories" has a tear in the cover. ★There may be a change from Yu-Yu Mercari delivery to Raku-Raku Mercari delivery. Please understand. These books were read by children, so please purchase them with that in mind. If you have any other questions, please feel free to ask (^_^) Thank you.