Library
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) | CID |
|---|---|---|---|
| 1969 | Laat me met je meegaan | Yannie Ritsos | 6106 |
| 1969 | Die Stadt des Mittelalters I | Carl Haase | 4168 |
| 1969 | Weg wezen | 4201 | |
| 1969 | Histoire de la critique d'art | Lionello Venturi | 4330 |
| 1969 | From A to Z | Rebecca Rass | 5629 |
| 1969 | Kitsch | Gillo Dorfles, John McHale, Karl Pawek | 5742 |
| 1969 | Mistr Jan Hus a Husinec | Jaroslav Necas, Václav Starý | 4136 |
| 1969 | Liga Nieuw beelden | 4152 | |
| 1969 | Leonardo Da Vinci | Kenneth Clark | 4218 |
| 1969 | Nieuwe revolutionairen | 4398 | |
| 1969 | L'opera completa di Tiziano | Corrrado Cagli, Francesco Valcanover | 4711 |
| 1969 | Fresco's uit Florence | Rijksmuseum Amsterdam, A. van Schendel | 4120 |
| 1969 | Nederlandse beeldhouwkunst '64-'69 | Maria Houtzager | 5100 |
| 1969 | Sculpture | Richard Long | 6374 |
| 1969 | Nótaszó | 4055 | |
| 1969 | Rembrandt 1669-1996 | Arthur van Schendel | 5166 |
| 1969 | 1969 Arkitektur Og Billedkunst | 5648 | |
| 1969 | Tekeningen van Rembrandt en zijn school | H.R. Hoetink | 4615 |
| 1969 | The Tate Gallery | Norman Reid | 5665 |
| 1969 | Pietro Longhi | Terisio Pignatti | 5087 |
| 1969 | Problems in Titian | Erwin Panofsky | 5898 |
| 1969 | Fruend, friends, freunde und freunde | Karl Gerstner, Ditter Rot, Daniel Spoerri | 4124 |
| 1969 | Ferdi | Shinkiji Tajiri | 4821 |
| 1969 | Avant pendant et après la commune | Charles Feld | 5305 |
| 1969 | Schönberg - Webern - Berg - Bilder - Partituren -… | Werner Hofmann , Clemens Chr. J. von Gleich | 3878 |
| 1969 | De geschiedenis van de muziekinstrumenten | Curt Sachs | 4011 |
| 1969 | Vladimir Tatlin 1885-1953 | Troels Andersen | 4822 |
| 1969 | Kermis in de hel | Luk Wenseleers | 3591 |
| 1969 | Tiszán innen Dunán túl | Borsy István, Rossa Ernõ | 4044 |
| 1969 | A Portrait of the artist as a young man | James Joyce | 5258 |
| 1969 | Elles | 8031 | |
| 1969 | Yugoslav naive painting | Boris Kelemen | 4062 |
| 1969 | Pour un Marxisme Libertaire | Daniel Gúerin | 4274 |
| 1969 | Kunst en revolte | Louis Peters | 4373 |
| 1969 | Titian | Cecile Gould | 4719 |
| 1969 | Kursbuch | Michail Bakunin, Wolfgang Dressen , Eric Hobsbawm | 6327 |
| 1969 | Opstand van de Homo Ludens | Constant Nieuwenhuys | 3679 |
| 1969 | Westermanns Grosser Atlas zur Weltgeschichte | Hans-Erich Stier, Ernst Kirsten, Wilhelm Wühr | 5260 |
| 1969 | Paul Léautaud | Marie Dormoy | 4605 |
| 1969 | Hans Bellmer | Pieyre de Mandiargues | 6501 |
| 1969 | Student Power | Alexander Cockburn, Robin Blackburn, eds. | 4277 |
| 1969 | Fourier | André Vergez | 5440 |
| 1969 | Ons erfdeel | Hendrik Riemens, Raymond Derine, Paul WIspelaere | 6330 |
| 1969 | Les damnés de la terre | 1971 | Maurice Choury | 6384 |
| 1968 | Le droit à la ville I | Henri Lefebvre | 4198 |
| 1968 | Partisans | 4361 | |
| 1968 | La révolution introuvable | Raymond Aron | 4394 |
| 1968 | Finnigans Wake | James Joyce | 5247 |
| 1968 | Alleen maar voor de pret | Fanny Kelk, Constantijn Kelk | 5772 |
| 1968 | Mao Tse-tung | Tileman Grimm | 4199 |
