MARCUS VITRUVIUS Marcus Vitruvius Pollio (c. 80–15 BC) was a Roman architect and engineer. His "Ten Books" became the essential textbook for Renaissance architects seeking to rediscover classical proportions. ON ARCHITECT-

ure: Ten Books, recently corrected with the greatest diligence

and printed, with the addition of Julius Frontinus's Sextus Julius Frontinus (c. 40–103 AD) was a prominent Roman civil engineer and soldier. He is most famous for his official report on the state of the aqueducts of Rome.

books on aqueducts on account of

the similarity of the subject matter Latin: materia. Because Vitruvius discusses water supply in his eighth book, Renaissance editors often packaged his work with Frontinus's specialized treatise for the convenience of engineers and scholars.

A woodcut printer's device This is the trademark of the Giunta family, one of the most famous and prolific printing dynasties in Florence and Venice during the 1500s. set within a rectangular border. It depicts two nude putti standing on a stone base, flanking and reaching toward a large, ornate fleur-de-lis The fleur-de-lis is the heraldic symbol of the city of Florence, where the Giunta press originated. that rises from a central pedestal. The pedestal contains a circular medallion with the letter 'F' Standing for "Florentina" (Florentine), identifying the branch of the Giunta family business.. At the bottom of the device, a rectangular plinth bears the motto: NOTHING MORE PURE Original Latin: NIL CANDIDIVS. This motto served as a brand promise, suggesting that the Giunta editions were "purer" or more accurately edited than those of their competitors..