Heidi is a work of children's fiction published between 1880 and 1881 by Swiss author Johanna Spyri, originally published in two parts as Heidi: Her Years of Wandering and Learning (German: Heidis Lehr- und Wanderjahre) and Heidi: How She Used What She Learned[2] (German: Heidi kann brauchen, was es gelernt hat).[3] It is a novel about the events in the life of a 5-year-old girl in her paternal grandfather's care in the Swiss Alps. It was written as a book "for children and those who love children" .

Johanna Louise Spyri was a Swiss author of novels, notably children's stories. She wrote the popular book Heidi. Born in Hirzel, a rural area in the canton of Zürich, as a child she spent several summers near Chur in Graubünden, the setting she later would use in her novels.