How to shade from models, common objects, and casts of ornament. : a practical manual : with 25 plates by the author
A practical 1890 London drawing manual by W. E. Sparkes, published by Cassell & Company, teaching students to shade from models, everyday objects and casts of ornament. The plates are pencil and stump studies of tonal gradation: vertical bands and flat washes, then shaded spheres and ellipses shown in progressive stages. A designer could take from them a clear method for building form with graded value, cast shadow and core shadow.
