A collection of children's books and games published under the name The Painter eased the lives of thousands of Dutch children. The Painter's leaders were the illustrator Galinka Ehrenfest, of Jewish father, and her husband, Jaap Kloot.

They used the Spanish pseudonym to publish and helped their hidden compatriots with the income earned. About twenty of those books have been acquired by a private individual at the International Old Book Fair in New York. The buyer intends to donate them to the Holocaust Museum, Amsterdam.