Artist Liz Haywood-Sullivan explains how her artist sketchbook habit has fed her own creative appetite, and how it can help feed yours, too. After all, Georges Braque once said, “There is a great appetite to work, and then my sketchbook serves me as a cookbook when I am hungry.”

On looking back over my sketchbook a few of the better (I think?) sketchbook drawings of regular commuters from my regular commute from Heb...