American photographer (1880–1962)
Arthur Hammond (1880 - 1962) was a pictorialist photographer, who has written books like Pictorial Composition in Photography.
From: Wikiquote (CC BY-SA 4.0)
The would-be picture-maker must learn to think pictorially; he must try to regard a picture as a pattern, as an arrangement of lines and shapes, making in themselves a pleasing and satisfying design, quite apart from the objects represented. The lines will form certain shapes, and the shapes will vary in tone; some may be light, some dark and some of intermediate shades of gray, which we call halftones.