Leonardo//thek@-Codex Atlanticus is an innovative digital repository that provides access to images and transcriptions of the nearly 1200 pages of the Codex Atlanticus, and to the results of over two centuries of scholarly work on this resource. Thanks to the multiplicity and variety of the research facilities, the repository constitutes an indispensable tool for exploration of the vast and chaotic ocean of data stored within the Codex. 

Leonardo//thek@-Codex Atlanticus represents the first step in an ambitious project: to reconstruct the state of Leonardo’s manuscripts before the disastrous intervention by Pompeo Leoni, the Aretine sculptor who, in the late 16th century, dismembered and mutilated many of Da Vinci’s notebooks and loose sheets, distributing them between two large albums, one of which, the Codex Atlanticus, is today preserved in the Ambrosiana Library, Milan, and the other in the Royal Library, Windsor. 

Currently nearing completion, the second step of the project, Leonardo//thek@-Royal Collection, will complement the Codex Atlanticus platform, making it possible to investigate the two gigantic digital archives either separately or as an integrated resource. 

Leonardo//thek@-Codex Atlanticus was published on the web in March 2023 after 6 years of dedication to the project by scholars, IT experts and the staff of the Museo Galileo in Florence. 

 It would have been impossible to bring this innovative undertaking to completion without the support of the Ministero dell’Università e della Ricerca, the Comitato Nazionale per la celebrazione dei 500 anni dalla morte di Leonardo, the Commissione per l’Edizione Nazionale dei Manoscritti e dei Disegni di Leonardo da Vinci, the Ambrosiana Library, Milan, the Royal Library, Windsor, and the Biblioteca Leonardiana, Vinci.