In 2013, Roos began work at the University of Lincoln and retired in July 2024 and is now an Emeritus Professor.
[2] Under her editorship, the first in a series of video interviews was published and the number of entries to the Essay prize significantly increased.
She studied the naturalist Martin Lister and his daughters Anna and Susanna, who created the images for the book Historiae Conchyliorum and were some of the first women to use a microscope.
[5][6] Roos detailed how Anna and Susanna became artists from their teenage years and that their work was used by their father because he considered that even the best professional illustrators were not sufficiently reliable.
[10] The book was dedicated to a pet goldfish she owned as a child, named Speedy.
She discussed plague outbreaks and quarantine in Venice in the early modern era.
[11] Her other books are: Edited with Gideon Manning, Collecting Wisdom of the Early Modern Scholar: Essays in Honor of Mordechai Feingold.