Plain Air is a collection of "idea drawings" (aka cartoons) drawn over a three year span by plein-air watercolor artist Dick Zunkel. The series traces his early line drawing and gray-scale art to full color illustrations. His technique is "old school" beginning with hand drawn ink on paper. With the open source graphic editor Inkscape, he converts his drawings to full color illustrations using established painting techniques of color, contrast, and composition combined with dry humor. The book is 58 pages with 11 gray-scale and 84 full color cartoons. A narrative describes the inspiration and technique used to produce the finished art.
Plain Air is available these sources: