Historien om någon

Historien om någon (Swedish for "The Story About Someone") is a Swedish children's story written by Åke Löfgren and illustrated by Egon Møller-Nielsen. It was originally published by Folket i Bild in 1951, and has since been re-released by Rabén & Sjögren; a tactile edition for readers with impaired vision has also been produced by the Swedish Library of Talking Books and Braille, with tactile illustrations by Eva P. Eriksson and Marguerite Ahlbom.

A mystery picture book, Historien om någon sees the point-of-view character follow a red string of yarn through a Swedish 1950s house to learn the identity of an unknown visitor; a conceit that originally came from Møller-Nielsen. The book is considered a classic children's story, and is still in print as of 2018. Although Møller-Nielsen did not follow Historien om någon with further children's books, others have followed in its tradition of picture book spaces as play areas. A musical theater adaptation by Boulevardteatern premiered in 2011 in Stockholm.