The practice of perspective, or, An easy method of representing natural objects according to the rules of art : applied and exemplified in all the variety of cases ... : the whole illustrated with one hundred and fifty copper-plates
A 1743 London perspective manual by Jean Dubreuil, published by Thomas and John Bowles, teaching students of drawing how to represent objects according to the rules of art. Its plates are numbered copper-engraved diagrams, with each page showing a pentagon, a vaulted arch, or a pyramid built up in stages with dashed sightlines and vanishing points. A designer might take from them the clean geometry of construction lines, the way a receding arcade or a pentagonal prism is reduced to converging rays, and the layered three-panel page layout.
