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 Author(s)
1974 Constant Fanny Kelk
1980 Constant Th. van Velzen
1985 Constant
1992 Constant Jean Clarence Lambert
1974 Constant Michel Ragon
1976 Constant Kristian Jakobsen
1959 Constant Constant Nieuwenhuys
1971 Constant George Andresen
1972 Constant Constant Nieuwenhuys, Victor Nieuwenhuys
1998 Constant Josefina Núñez
1996 Constant Rudi Fuchs, Marcel Hummelink
1995 Constant Rudi Fuchs, Marcel Hummelink, Constant Nieuwenhuys
1991 Constant 'Leda' Constant Nieuwenhuys
Constant 'Wie niet in… Constant, Betty Garret
1965 Constant 1945-'65 Victor Nieuwenhuys
1961 Constant Amsterdam Constant Nieuwenhuys
2004 Constant Permeke Willy van den Bussche, John Sillevis
1963 Constant Tekeningen Carl Heinz Caspari, Constant Nieuwenhuys
1977 Constant the artist: Fanny Kelk
1978 Constant | Schilderijen 1969-77 Edy de Wilde, Fanny Kelk, Constant Nieuwenhuys
1998 Constant's New Babylon Mark Wigley
1992 Constant, het proces Liesbeth Hage
2001 Constant, New Babylon, una città nomade Francesco Careri
1967 Constant: New Babylon Morten Krohg
1995 Constantin Brancusi Friedrich Bach, Margrit Rowell, Ann Temkin
2000 Construire en France, construire en fer,… Sigfried Giedion
1961 Constumes through the ages James Laver
1966 Contemporary dutch graphics
2004 Content Rem Koolhaas, Brendan McGetrick
1927 Contes Bruns Honoré de Balzac, Marcel Bouteron
1966 Contes du Lundi Alphonse Daudet , Jean-Louis Curtis
1938 Contes Problatiques I Honoré de Balzac
1938 Contes Problematiques II Honoré de Balzac
1964 Contre le Cinéma Guy Debord
1990 Controspazio
1978 Conversations avec Cézanne Emile Bernard, Jules Borély, Maurice Denis
1883 Convulsions de Paris Maxime du Camp
1977 Coriovallum J.T.J. Jamar
1973 Corneille
1976 Corneille Erik Slagter
1992 Corneille Graham Birtwistle, Patricia Donkersloot-Van den Berghe, Enrico Baj
2003 Corneille Pierre Restany
1965 Corneille Werner Haftman
1992 Corneille Jean-Clarence Lambert, Ed Wingen
1964 Corneille Willem Sandberg
2003 Corneille - Rue Santeuil 20 Leo Duppen, Louis Tiessen
2003 Corneille - Rue Santeuil 20 Leo Duppen, Louis Tiessen
2003 Corneille 1 Leo Duppen
2003 Corneille 2 Louis Tiessen
2000 Corneille in Cuba Corneille