Of the 6,300 handwritten pages preserved today of Leonardo da Vinci (1452-1519), more than 600 are kept at the Spanish National Library. Under the name Códices Madrid I y II (Madrid Codices I-II), the volumes reflect the flow of thought of the Florentine erudite on subjects that go from mechanics and statics to the study of fortifications or bronze casting. Thanks to the digitalization processes and the exhibition at the National Library it is now possible to examine the interior of the treatises and get to understand the Vinci-born artist better...[+]