After his death, Marie Neurath continued the work of the Isotype Institute, publishing Neurath's writings posthumously, completing projects he had started and writing many children's books using the Isotype system, until her death in the 1980s.
Po jeho smrti Marie Neurath pokračovala v práci v isotypovém ústavu, publikovala posmrtně jeho díla a dokončovala jeho knihy až do své smrti v roce 1980.