Joanne Oppen­heim has writ­ten more than fifty books for and about chil­dren. She spends a lot of time play­ing with toys (some­one has to do it) and reviews them for toy​port​fo​lio​.com. She lives in New York City, not far from Riv­ing­ton Street, where her great grand­fa­ther had a push­cart and no doubt ate knish­es. She prefers round baked pota­to knishes.