One of the sources of inspiration for the “Book Collection” is Bertolucci’s The Dreamers, which is imbued with the revolutionary romance of 1960s’ Parisian intelligentsia. The hardware featuring A.Cloud’s metals specially designed by A.Cloud, using 3D-printing technology to form the model, and then produced through researched collaboration with metal factory. A. Cloud’s choice of metals zinc alloy or copper meets the EU’s environmental requirements.