In January 2020, the New-York Historical Society acquired Caro's complete archive, consisting of "200 linear feet of material", part of which will be digitized and made wholly available to researchers in a Robert A. Caro Study Space. Additionally, a permanent exhibition, named "Robert Caro Working" after his 2019 book "Working", will be set up at the Society's library. Caro stated that he was "just plain delighted" since his "favorite aunt often took" him there as well as having spoken there and "been a recipients of its awards."