What to Draw and How to Draw It by E. G. Lutz
This is really a remarkable book in which line is made a good reason for form. The youngest child may grasp the magic progress of this way of working and he will draw the picture naturally and well.
Instructions are very brief, for the key lines of each project tell their own story and the child is entranced by the results soon gained. There is no stupid tracing in this book, for tracing accomplishes at most only a little muscular control.
The book provides a step-by-step system that fixes the object in memory and develops naturally a physical skill and a memorized knowledge of proportion and form. Foreshortening and perspective, often bug-bears to young artists, are overcome by the simplest progressive examples.
Originally published in 1915 and credited with being the inspiration for Walt Disney to pick up a pencil and pursue a career in animation, E.G. Lutz's method of drawing complex illustrations in gradual, simplified stages paved the way for many of the artists and illustrators who followed him.