Some of his most famous works include:
* The Little Tiger (Der kleine Tiger) series: This is his most popular and beloved series, telling the story of a little tiger who goes on adventures.
* The Little Donkey (Der kleine Esel) series: Another popular series featuring a little donkey who experiences life's ups and downs.
* The Little Bear (Der kleine Bär) series: A series about a little bear who loves to play and explore.
* The Little Mouse (Die kleine Maus) series: This series follows the adventures of a curious little mouse.
Ali Mitgutsch's books are characterized by their simple language, charming illustrations, and positive messages about friendship, courage, and the importance of family. They are enjoyed by children and adults alike.