The Definitive Maria Callas: The Life of a Diva in Unseen Pictures documents Maria Callas’s fascinating life, from her difficult childhood in 1920s New York to her early professional successes in Italy, giving rare insights into her personal life away from the opera stage and recording studio. The book is published by ROADS Publishing, and all of the images come from the Marzotto Archive Collection.

View our gallery containing many of these previously unseen pictures.

This hardback book retails at £65, and is a fantastic addition to anyone's coffee table.

For your chance to win, simply click here.

Competition closes at midnight (BST), December 15, 2016.