Désirée Cappa obtained a BA and an MA in Philosophy from the University of Calabria and a three-year postgraduate degree in medieval and Renaissance art history from the University of Pisa. She worked for four years at the Boboli Gardens Museum researching the sculpture collection and the iconographic program of the gardens. In Florence, she also took part in different projects with the Gabinetto dei disegni e delle stampe degli Uffizi and the Fondazione Memofonte. In the UK, after an internship at Sotheby's (Sculpture Department), she collaborated with various institutions such as the Garden Museum (London) and the Fitzwilliam Museum (Cambridge). She is also an editor at the Albertiana, the journal of the Société internationale Leon Battista Alberti (Paris). Cappa is currently writing a PhD thesis (funded by the European Union) on Pierfrancesco Riccio (1501-64), tutor and ducal secretary of Cosimo I de' Medici. James Christie is a historian of science with interest in early modern astronomy and astrology. He has a BA (Hons) in Early Modern and Medieval Studies from the University of Sydney, and an MA in the Cultural and Intellectual History of Europe from The Warburg Institute. He is currently writing a PhD thesis on the relationship between astrology and the 'plurality of worlds' debate in the 17th century. Lorenza Gay is an art historian with a particular interest in iconography and iconology. She is currently a PhD student at the Warburg Institute, and her research is focused on the depiction of the pagan gods in French illuminated manuscripts from the fourteenth and fifteenth centuries. She recently completed an MA at the Warburg Institute in Art History, Curatorship and Renaissance Culture in collaboration with the National Gallery of London. Prior to this, she received an MA in Art History (summa cum laude) and a BA in History from the Università Cattolica del Sacro Cuore in Milan.