She speaks English and Spanish.
Cosetta was born and raised near Florence. After completing her studies in Italy she went to England to improve her English.
When she came back she started working at the Anglo-American bookshop in Florence where from employee for several years, she became the owner.
The bookshop specialized in art books, and Cosetta cultivated her interest in art history. In 2008 she decided to get a license to become a qualified tour leader and while still running the book business, she began escorting people especially in Tuscany.
In 2011 she sold the business and went back to school to get a license to become a professional tour guide in Florence and its province.