This is the first-ever English translation of Daniele Barbaro’s 1567 Italian translation of and commentary on Vitruvius’s Ten Books of Architecture, an encyclopaedic treatment of science and technology whose influence extended far beyond its day. Intended to both interpret and expand upon the Vitruvian text, Barbaro’s erudite commentary reflects his Aristotelian approach, particularly his fascination with the relationship between science and the arts.