To peek into the sketchbook of an artist is a rare treat. Seeing the bones, the build, and the body of work behind some of your favorite works is akin to seeing how a magician creates an illusion--the mirrors behind the magic. Among the many skills of an artist--whether a painter, designer, or illustrator--none is more basic and yet essential than sketching. To know how to translate your vision to the page allows for flashes of inspiration to build and become tangible creative expressions. Art books tend to exist on a spectrum between "picture books" and formulaic "how to draw" books with...