The costumes of various characters in folk culture picture books. Folklore in the costumes of characters in folk picture books is folk culture, and picture books are picture books, that is, the costumes of each character in a picture book with folk culture as a whole can show the national and personal characteristics of the characters and the costumes of each nation. Folklore, also known as folk culture, refers to a relatively stable cultural event gradually formed and passed down from generation to generation by a nation or a social group in long-term production practice and social life, which can be simply summarized as popular customs and habits.