Rizzoli Libri, formerly Rizzoli Libri S.p.A. and RCS Libri S.p.A. is an Italian book publisher and a division of Mondadori Libri, a wholly owned subsidiary of Arnoldo Mondadori Editore. RCS Libri was a former subsidiary of RCS MediaGroup, but in 2015, most of the book publishing division was sold to Arnoldo Mondadori Editore, with some imprints of RCS Libri, were either sold by RCS MediaGroup or Arnoldo Mondadori Editore as part of an antitrust deal. RCS MediaGroup retained the brand Rizzoli for non-book publishing, while Arnoldo Mondadori Editore has the exclusive rights to use the brand Rizzoli in book publishing.
From 2016 to 2017, Rizzoli Libri S.p.A. was further dismantled into subsidiaires and divisions of Arnoldo Mondadori Editore. Rizzoli Libri (trade book section only) became a division of sub-holding company Mondadori Libri S.p.A., while Rizzoli Education S.p.A. became a subsidiary of Mondadori Libri S.p.A.; The international subsidiaries of the former Rizzoli Libri S.p.A.: Rizzoli International Publications and Rizzoli Bookstore, became the subsidiaries of Mondadori Electa S.p.A., itself a subsidiary of Mondadori Libri S.p.A.. Rizzoli International also operated the new brand Rizzoli Electa.