She was professor of the history of applied arts at Leiden University.
Fock obtained her doctorate at Leiden University in 1975 with a dissertation on the goldsmith Jacques Bylivelt at the court of Florence.
[1] She was mainly concerned with the history of interior decoration and furniture, tapestries and goldsmithing.
[2] She wrote books about residential culture and Rapenburg in Leiden.
In 2019, she was awarded an honorary membership of the Vereniging van Nederlandse Kunsthistorici (Association of Dutch Art Historians).