SUMMARY In the XVII century, when one of the naval culture development center was focused mainly in the Mediterranean area, disciplines such as geometry, mathematics, static and hydrodynamics had not yet been studied and early naval architecture treatises were still influenced by empirical and descriptive knowledge typical of an oral rather than a scientific tradition. Precisely is in this context that, in 1626, that Joseph Furttenbach (1591 - 1667) published Architectura Navalis in Ulm. In his treatise he provides a summary of technical descriptions and a detailed account of the construction of sailing boats, according to the Italian way of building, based on direct observation of shipyards. Furttenbach relies on geometric drawings and a metric system of proportions to describe these techniques. Exactly for this reason, the Architectura Navalis is considered one of the first shipbuilding treaties, and it has been used as a model for many authors of the seventeenth and early eighteenth century.