Quotes via Richard Brereton's Sketchbooks: The Hidden Art of Designers, Illustrators, and Creatives, 2009.
"I was using drawing to digest and give meaning to the outside world. ... Sometimes I feel that in keeping sketchbooks I'm documenting the world as I see it, like a kind of archivist, often using my sketches to search for connections in the small things that would otherwise be lost and forgotten." –– Peter James Field, U.K. artist and illustrator, p. 108
"A sketchbook is like a valve, a pressure release system. Instead of weighing things up in my head, I give them a place in my sketchbook. ... [My] sketchbook is a reflection of my inner world, without complaints, worries or private problems." –– Daniel Kluge, German graphic designer, p. 178.