Books and museums were both born as instruments for transmitting knowledge and for widening learning. The Tibaldo Museum was created not just for showing fascinating pieces from the history of communication to the public, but also for displaying that singular “object”, a book, with its most secret facets and its progressive development through time. Today the collection includes more than nineteen thousand volumes, the greatest part of which relate specific themes on the patrimony exhibited in the Museum of communication and the period considered embraces more than a century and a half of life, from the mid-Nineteenth century onwards. Inside the Museum, in addition, are manifestos, playbills, magazines and original prints, films from all the ages of silent films to the novelties of cinemascope in the 60s. The museum through its library guides us on a journey through memory, to the discovery of the history, secrets and technology of an era that has now passed but which is still fascinating.