The New York Public Library owns an absolutely peculiar collection: a 6000+ cards catalog of hand-typed children books reviews, written by librarians over the years. Lynn Lobash, NYPL reader services overseer, explained to Quartz that, “There’s about a billion card catalogs in the library, but these are special in that they were used as a tool for collection development, for the staff to evaluate the children’s collection.”
Be sure to check out NYPL’s Instagram account, where new review cards are posted every Tuesday.