An interesting book about an unusual partnership between two out-of-the-ordinary women in the contemporary art world of the early to mid-twentieth century:
Peggy Guggenheim & Nelly van Doesburg: Advocates of De Stijl, Doris Wintgens, Taco Dibbits, Meta Knol (nai010 publishers, Rijksmuseum and Museum de Lakenhal, 2017)