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)
2002 Walkscapes Francesco Careri
2002 Ideaal! wonen S. Ex, I. Schwarz, L. Helmus
2002 Sotheby's Amsterdam | Newsletter November/December…
2002 De Nachtzomer Yves Bonnefoy, Pierre Alechinsky
2002 Atlántica Xosé Antón Castro , Juan Manuel Bonet, Xavier Seoane
2002 Helder maar grijzer Gerrit Kouwenaar
2002 Sotheby's Amsterdam | Newsletter September/October…
2001 Versjes David Kouwenaar
2001 Architectural Design
2001 AA files 43 Architectural Association School of Architecture
2001 Van Gogh Gauguin José van Gemert, Melchert Zwetsman
2001 Jaarboek Gemeentemuseum Den Haag 1999-2000 Jonieke van Es, Magda Kyrova
2001 Tàpies Jean Frémon, Pere Gimferrer, Georges Raillard
2001 Nic. Tummers | 1928 - Nic Tummers
2001 Lucebert Jens Christian Jensen
2001 ChronoCobra Joseph Noiret
2001 L'Oeil 530 Bruno Chabannes, ed.
2001 Dossier de l'Art Jean Lorentz, Olivia Eller, Adalbert Mischlewski
2001 Cobra Willemijn Stokvis
2001 L'Oeil | Supplément gratuit: le guide de l'art
2001 Gerrit Benner
2001 Constant, New Babylon, una città nomade Francesco Careri
2001 Tàpies Jean Frémon, Pierre Gimferrer, Georges Raillard
2001 Sotheby's Amsterdam | November/December 2001
2001 Constant Musée Picasso Antibes
2001 Cézanne Steven Platzman
2001 Pieter Bruegel the Elder Nadine Orenstein, Manfred Sellink, Jürgen Müller
2001 Nouvelles de nulle part Joseph Abram, Chantal Béret, Philippe Duboy
2001 Zurbarán Mariu Mariam
2001 Sotheby's Amsterdam | June/August 2001
2001 Heinrich Campendonk Franz Joseph van der Grinten, Ruvert Ophorst, Astrid Schunck
2001 9, Rue d'Odessa Marcel Vleugels, Carl Henning Pedersen, Mischa de Vreede
2001 Critique de l'image quotidienne Asger Jorn
2001 Biografie van Constant Trudy van der Horst
2001 Titian Filippo Pedrocco
2001 Droit d'aubaine Jean-Clarence Lambert
2001 Sotheby's Amsterdam | September/October 2001
2001 Coeur ou abîme Jean-Clarence Lambert, Farid Belkahia
2001 Connexxion Connexxion
2001 De beschilderde orgelluiken in Europa J.P. Félix, Ole Olesen, Isolde Lübbeke
2001 De Vlaamse Primitieven Jean-Claude Frère
2001 Zurbarán Mariu Mariam
2001 Ilja Repin Henk Os, Sjeng Scheijen
2001 Goya Juliet Wilson-Bareau
2001 Sotheby's Amsterdam | April/May 2001
2001 Anton Heyboer Hans Sizoo, Anton Heyboer
2001 Zubarán Miriam Mariu
2001 De Wet Terwee Dr. Renée Kool, Prof. dr. Martin Moerings
2001 Tajiri Arie Hartog , Kai Fischer
2001 The Game of War Andrew Hussey