This volume of Miscellanea INGV is dedicated to the memory of Professor Marcello Carapezza (1925– 1987), geochemist and volcanologist at the University of Palermo, on the centenary of his birth. Most of the contributions collected here were presented during the 10th edition of the X Villaggio Letterario conference, held in honour of Professor Carapezza, which took place in Ustica in August 2024. These articles highlight the many talents of Carapezza: an innovative scientist, founder of a modern school of Geochemistry applied to the monitoring of active volcanoes, environmental protection, and the study of cultural heritage; but also a humanist, promoter of cultural initiatives, and a refined science communicator through the media. These are all qualities that have left a deep mark on...