She began illustrating children's books in the 1920s for other authors, and she eventually began to write and illustrate her own books. She is best known as the illustrator of a series of children's books featuring a goblin named Piggelmee that were published as a form of advertising by the Van Nelle coffee company in the 1930s and 1940s. The first of the Piggelmee books, Het tovervisje (Witchcraft, 1949), was based on a story by the Brothers Grimm. Following this came De wonderschelp (The Wonder Shells, 1950), which was written in verse, and De Baas van Bos en Duin (The Boss of Forest and Dune, 1951).
