Architektonisches Lehrbuch: Geometrische Zeichnungslehre, Licht- und Schattenlehre
Architektonisches Lehrbuch is a German architectural textbook by Friedrich Weinbrenner, published in 1810 by Heidelberg University Library, teaching students geometric drawing and the theory of light and shadow. Its engraved plates show lettered construction diagrams of stone blocks, arches and cornices, with hatched shadow areas worked out in parallel lines.
