Others, notably his first wife Olga Khokhlova, and his mistress Dora Maar, succumbed to nervous breakdowns. His son, Paulo, developed a fatal alcoholism due to depression. His grandson, Pablito, also died by suicide that same year by ingesting bleach when he was barred by Jacqueline Roque from attending the artist's funeral. Catalogue raisonné Picasso entrusted Christian Zervos to constitute the catalogue raisonné of his work (painted and drawn). The first volume of the catalogue, Works from 1895 to 1906, published in 1932, entailed the financial ruin of Zervos, self-publishing under the name Cahiers d'art, forcing him to sell part of his art collection at auction to avoid bankruptcy. From 1932 to 1978, Zervos constituted the catalogue raisonné of the complete works of Picasso in the company of the artist who had become one of his friends in 1924. Following the death of Zervos, Mila Gagarin supervised the publication of 11 additional volumes from 1970 to 1978. The 33 volumes cover the entire work from 1895 to 1972, with close to 16,000 black and white photographs, in accord with the will of the artist. 1932: tome I, Œuvres de 1895 à 1906. Introduction p. XI–[XXXXIX], 185 pages, 384 reproductions 1942: tome II, vol.1, Œuvres de 1906 à 1912. Introduction p. XI–[LV], 172 pages, 360 reproductions 1944: tome II, vol.2, Œuvres de 1912 à 1917. Introduction p. IX–[LXX–VIII], 233 p. pp. 173 to 406, 604 reproductions 1949: tome III, Œuvres de 1917 à 1919. Introduction p. IX–[XIII], 152 pages, 465 reproductions 1951: tome IV, Œuvres de 1920 à 1922. Introduction p. VII–[XIV], 192 pages, 455 reproductions 1952: tome V, Œuvres de 1923 à 1925. Introduction p. IX–[XIV], 188 pages, 466 reproductions 1954: tome VI, Supplément aux tomes I à V. Sans introduction, 176 pages, 1481 reproductions 1955: tome VII, Œuvres de 1926 à 1932. Introduction p. V–[VII], 184 pages, 424 reproductions 1978: Catalogue raisonné des œuvres de Pablo Picasso, Paris, Éditions Cahiers d'art Further publications by Zervos Picasso. Œuvres de 1920 à 1926, Cahiers d'art, Paris Dessins de Picasso 1892–1948, Paris, Éditions Cahiers d'art, 1949 Picasso. Dessins (1892–1948), Hazan, 199 reproductions, 1949 See also Picasso's written works List of Picasso artworks 1889–1900 1901–1910 1911–1920 1921–1930 1931–1940 1941–1950 1951–1960 1961–1970 1971–1973 Neoclassicism Notes and references Notes References Sources Gether, Christian, ed. (2019). Beloved by Picasso: The Power of the Model. ARKEN Museum of Modern Art. 978-87-78751-34-8. Nill, Raymond M. (1987). A Visual Guide