This project would not have been possible without the unwavering support of Bella Meyer, Meret Meyer, and Piet Meyer. To them we express profound gratitude for their generosity, commitment to supporting us, and willingness to share their knowledge. 

We are deeply grateful to David McNeil, Leslie McNeil, and Dylan McNeil, whose contributions were a determining factor in the success of this project.

We warmly thank Jean-Louis Prat for sharing his memories and knowledge of the work of Marc Chagall.   

We extend sincere gratitude to Manuel Bidermanas for his trust and his generous contribution. 

Thank you to all the people who effectively participated in building the project:

Camille Anglada, Sylviane Brandouy, Émilie Diné, Fabrice Gousset, Nathalie Hazan-Brunet, Tamara Karandasheva, Anne-Laure Lassaigne, Pascal Marzin, Ekaterina Selezneva, Paul Schneiter, Agnès Stankevitch.