Over the years, Roberta Saltzman accumulated 700 Jewish cookbooks, with a particular focus on community cookbooks from small-town America. Despite being chief assistant librarian at New York Public Library’s Dorot Jewish Division, Saltzman used her own money to build her collection, which she donated to her workplace before her death. Now, at more than 2,500 books, the collection is likely the largest in existence, drawing researchers from around the world.