Illustrated Children's Books from the Soviet Union (Princeton University)"The Cotsen Children's Library is a major research collection of rare illustrated children's books, manuscripts, ephemera, writing books, games, maps, original artwork, prints, and educational toys from the 15th century to the present day in over forty languages. The collection has major holdings of materials in the English, Chinese, Czech, Dutch, French, German, Greek, Hebrew, Italian, Japanese, Latin, Russian, Scandinavian languages. Also represented are Albanian, Arabic, Korean, and North American indigenous languages." - https://dpul.princeton.edu/cotsen/about/the-cotsen-children-s-library