This new publication, published in collaboration with the Fondazione Giorgio e Isa de Chirico, includes 450 works not listed in Claudio Bruni Sakrasichik's earlier 8-v. catalogue (see entry cited in this database). Many of the newly listed paintings and drawings catalogue have been previously unpublished. The entries are in chronological order regardless of medium. The dating is based on the De Chirico Foundation's archival documentation, as well as historical and stylistic analogies. Paintings and drawings which are considered false are listed, additional apparatus includes a biography and appendix.