Constant’s personal library was documented in 2019-2020. The project was supported by Stichting Dioraphte, Gravin van Bylandt Stichting and Fundatie Van den Santheuvel, Sobbe.

Year Title Sort descending Author(s)
1991 The Issenheim Altar Pantxika Béguerie
1963 The Kama Sutra Vatsyayana
1986 The Kris Edward Frey
1994 The Last Futurist Exhibition of Painting Linda Boersma
1963 The Life and Ideas of the Marquis de Sade Geoffrey Gorer
1970 The Life and Times of Rubens Mario Lepore
1996 The life of Titian Carlo Ridolfi
1851 The Lives and Works of the most… Giorgio Vasari
1971 The Magic World
1931 The Metropolitan Museum of Art Bryson Burroughs
1994 The Movement of the Free Spirit Raoul Vaneigem
1955 The National Gallery London Philip Hendy
1966 The new art Gregory Battcock
1968 The Nightless City J.E. de Becker
1947 The Origin of species Charles Darwin, Arthur Keith
1963 The picture of Dorian Grey Oscar Wilde
1920 The Poetical Works of John Keats John Keats
1997 The Prisons of the Doge's Palace in Venice Umberto Franzoi
1985 The Ravished Image Sarah Walden
1990 The Rubáiyát of Omar Khayyám Edward Fitzgerald
1999 The Rules of the Game Sophie Calle, Paul Auster
1998 The Situationist City Simon Sadler
1962 The Situationist Times I Jacqueline de Jong, Noel Arnoud
The Situationist Times II
1963 The Situationist Times III Jacqueline de Jong
1963 The Situationist Times IV Jacqueline de Jong
1964 The Situationist Times V Jacqueline de Jong
1960 The Status Seekers Vance Packard
1968 The Story of the Spanish Guitar A.P. Sharpe
1969 The Tate Gallery Norman Reid
1988 The Tate Gallery Illustrated Catalogue of… Nicholas Serota
1986 The Tate Gallery | An illustrated companion Alan Bowness
1973 The theatrical World of Osaka Prints Roger Keyes, Keiko Mizushima
1979 The Transfiguration by Raphael Fabrizio Mancinelli
1957 The transformations of man Lewis Mumford
1979 The Tretyakov Gallery V. Volodarsky
1978 The Violin Makers Mary Alburger
The Vision of Siva Walt Withman
1945 The voyage Charles Morgan
1990 The Waste Land and other poems T.S. Elliot
1923 The Water-colour drawings of John Sell Cotman A.P. Oppé
1983 The Wind in the Willows Kenneth Grahame
1995 The Wonderful world that almost was Paul Thek
1925 The Writings of William Blake I William Blake
1925 The Writings of William Blake II William Blake
1925 The Writings of William Blake III William Blake
1938 Théatre I Honoré de Balzac
1938 Théatre II Honoré de Balzac
1968 Theo van Doesburg 1883-1931 Jean Leering, Louis Wijsenbeek, P.F. Althaus
1968 Theories of Modern Art Herschel Chipp, Peter Selz, Joshua Taylor