Draw 50 Dogs

The elements of drawing

John Ruskin

1819

The practice & science of drawing

Harold Speed

1972

Basic perspective drawing

John Montague

1985

Freehand perspective and sketching

Dora Miriam Norton

1909

The natural way to draw

Kimon Nicolaïdes

1941

Pedagogical sketchbook

Paul Klee

1925

Force

Mike Mattesi

2004

Little Cloud

Eric Carle

1996