Catherine Hoffman, a paleographic archivist, is chief curator in the Department of Maps and Plans of the National Library of France. She is a board member of the journal Imago Mundi, and has published fifteen articles on the history of cartography in the modern era.

Hélène Richard, a paleographic archivist, is a former director of the Department of Maps and Plans at the National Library of France. In addition to her research on the history of books and libraries, she has published works on the history of maritime exploration in the 18th and 19th centuries and the associated nautical science.

Emmanuelle Vagnon holds a PhD in history, specializing in maps of the Middle Ages. She is senior researcher at the French National Centre for Scientific Research and the University of Paris.

- (Firefly Books Ltd)