The Art of Spiral Drawing (Learn to create spiral art and geometric drawings using pencil, pen, and more): Learn to create spiral art and geometric drawings using pencil, pen, and moreJonathan Stephen Harris4.2
The Complete Book of Drawing Optical Illusions, 3D Illustrations, and Spiral Art: Master more than 50 optical illusions, 3D illustrations, and spiral drawingsStefan Pabst2.5