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)
1970 Appel's oogappels Jos Meyere, M.E. Houtzager
1947 Apollinaire André Billy
1966 Apenexpressies C. Feekes, G.J. Boekschoten
1940 Apen en hoefdieren in Artis A.F.J. Portielje
1975 Antonio Gramsci Antonio Gramsci
1987 Antoni Gaudí Rainer Zerbst
1963 Anton Rooskens Hans Sonnenberg
1994 Anton Rooskens Leo Duppen, Ed Wingen
2001 Anton Heyboer Hans Sizoo, Anton Heyboer
1976 Anton Heyboer J.L. Locher
1994 Antología Poética [1960-1994] Homero Aridjis
1961 Anthropologische Forschung Arnold Gehlen
1954 Anthologie de Cante flamenco Tomas de Silva
1990 Another look Rob Versluys , Suzanna de Sitter, Marja Bosma
1999 Another City for Another Life Catherine de Zegher, Mark Wigley, Constant Nieuwenhuys
1999 Another City for Another Life Mark Wigley, Catherine de Zegher
1965 Anna Karenina Lev Nikolajevitsj Tolstoj
1943 Anmerkungen zum Begriff des… Gustav Kafka
1934 Animal Life of the World J.R. Crossland, J.M. Parrish
1990 Angels with Callous Hands Olga Nieuwenhuys
1989 André Thomkins Marita Gleiss, Rose Frans Raddatz, Anne Meckel
1970 André Breton Jean-Louis Bédouin
1961 Anarchy 7 Colin Ward, ed.
1966 Anarchy 66 John Schubert
1966 Anarchy 64 Charlotte Franklin, ed.
1966 Anarchy 62 Colin Ward
1966 Anarchy 61 John Ellerby, ed.
1964 Anarchy 44 Arthur Moyse, ed.
1964 Anarchy 35 C.W.
1963 Anarchy 31 H.W. Morton, ed.
1963 Anarchy 30 John Ellerby
1963 Anarchy 23 John Ellerby, ed.
1967 Anarchisme en Cultuur Arthur Lehning
1982 An Introduction to Netsuke Joe Earle
1970 An Essay on the Principle of Population Thomas Malthus
1989 An Endless Adventure... an endless passion... an… Iwona Blazwick
1962 An die Studenten Die 'Charte d'Athènes' Le Corbusier
1995 Amsterdamse Ateliers L.J. Niemeyer
1987 Amsterdam in kaarten Willem Heinemeijer, Michael Wagenaar, G.J. Borger
Amstelveen Museum voor Moderne Kunst Piet van den Heuvel
2004 Amnesty International
1959 Amerikanisches Philosophieren Ludwig Marcuse
1976 Amerikanische Kunst von 1945 bis heute Lucius Grisebach
1964 Amazing Archigram 4
1990 Am Anfang war das Bild Wolfgang Holler, Hans Matthäus Bachmayer, Marc Le Bot
1990 Altijd nader en even ver Loet Swart
1918 Alterum - Kunst und Geschichte H. Luckenbach
1958 Alte Pinakothek München Ernst Buchner, Kurt Martin
1983 Alte Pinakothek Erich Steingräber
1963 Also sprach Zarathustra Friedrich Nietzsche