Nouveau livre de principes de dessein : recüelli des etudes des meilleurs maitres tant anciens que modernes
A drawing manual published in Paris and Lyon in 1748 by L. Surugue, gathering studies from older and modern masters for students learning to draw. Its plates show isolated facial features, heads in profile, and a child's head, drawn as tonal etchings with fine parallel hatching. A designer could take from them the clear hatching technique and the way single facial parts are isolated and built up from light to dark.
