This book presents the Gianfranco Luzzetti collection housed in the historic complex of the former convent of the Clarisse in Grosseto, a new museum in the city. The collection is the result of the donation to the Municipality, in 2018, of over 60 works from the personal heritage of Luzzetti, an antiquarian from Grosseto, deeply linked to his land. The paintings, of great quality, trace Italian art from the 14th to the 19th century, with particular attention to Florentine art of the 17th century. The collection includes masterpieces by Antonio Rossellino, Giambologna, Rutilio Manetti, Passignano, Niccolo di Pietro Lamberti, Corrado Giaquinto, Camillo Rusconi, Pier Dandini and Giovanni di Tano Fei, as well as important works by Donatello and Beccafumi and works already donated to the Municipality of Grosseto in past years, of Santi di Tito and Cigoli. This volume, with introductory texts regarding the history of the site, the birth of the Museum and the Collection, is complemented by an anthology of writings by Luzzetti and bibliographic apparatuses. Research and texts: Sandro Bellesi, Marco Ciampolini, Roberto Contini, Elena Dubaldo, Lucia Ferri, Claudia Ganci, Cecilia Luzzetti, Gianfranco Luzzetti, Andrea Marchi, Mauro Papa, Marcella Parisi, Francesca Perillo, Gianluca Sposato, Angelo Tartuferi. Italian edition, with English translation in the appendix.