The history of glass and glass-making is shown here through 400 works from ancient times to those created using the latest technology. Glass is the guiding motif of a journey through time, space, and the various cultures that have interpreted and used this material over the centuries. The volume gathers together rarities and masterpieces of glass art from important public and private collections of antique, modern and contemporary glass, including the Musée du Louvre in Paris, the Kunstmuseum of Dusseldorf, the Archaeological Museum of Cologne, the Archaeological Museum of Barcelona and the National Gallery of Antique Art in Rome. From the precious and significant collection of Roman glass discovered during excavations in the necropolises of Aosta Valley, to two recently restored, valuable historiated stained glass windows from Aosta Cathedral, to the creations of great masters such as Carlo Scarpa, Alfredo Barbini, Stanislav Libensky, Richard Meitner, Fulvio Bianconi, Napoleone Martinuzzi, Bertil Vallien, Gaetano Pesce, Lino Tagliapietra and Ettore Sottsass. In the area of contemporary art there are works in glass by Arman, Joseph Beuys, Louise Bourgeois, Daniel Spoerri, Wim Delvoye, Chen Zhen, Giò Pomodoro, Gilberto Zorio and many others. The volume is completed by the Techniques and Materials Section, presented by Anna Geotti, which follows the various steps in the glass making process, from the raw materials to the latest generation of technological glass products and ends by examining the relationship between glass and ecology. .