The Treatise on Architecture in the Biblioteca Laurenziana Medicea is a manuscript of texts on military engineering and religious and civic architecture. It was copied around 1487-1489, perhaps in Siena, under the supervision of its author, Francesco di Giorgio Martini, who may be responsible for some of its dozens of illustrations—mainly in the margins—of the building types and devices described in the text. Leonardo da Vinci, who owned the manuscript early in its history, added two marginal drawings of sea waves and a series of annotations.
We have 2 facsimiles of the manuscript "Treatise on Architecture":
- Il codice Ashburnham 361 della Biblioteca medicea Laurenziana di Firenze: trattato di architettura di Francesco di Giorgio Martini facsimile edition published by Giunti Editore, 1979
- Trattato di architettura di Francesco di Giorgio Martini facsimile edition published by Giunti Editore, 1994
