Perspectiva pes picturae, das ist: kurtze und leichte Verfassung der practicabelsten Regul zur perspectivischen Zeichnungs-Kunst
Perspectiva pes picturae, by Johann Jacob Schübler, published in 1720 and held by Heidelberg University Library, is a German manual teaching linear perspective to draftsmen and painters. Its plates are copperplate engravings of architectural orders, capitals, cornices and coffered vaulting, drawn with construction lines that show how a three-dimensional form is projected onto a flat surface. A designer could borrow the layered construction diagrams as a model for technical line drawing and for showing how forms recede in space.
