Koehler found inspiration for a career in the comics. He bagan his free lance illustration business after working for several years with CPH. Focusing primarily on humurous and children's illustration, Ed "cartoons" for a number of Christian publications. His cartoon anthologies include Amusing Grace and As the Church Turns. He is a co-author of Faith in Orbit and a contributor to a number of Best of Leadership cartoon books. He has illustrated several books for CPH including titles in the Arch Book series and a selection of activity books. Ed has erceived awards from the Evangelical Press Association and the Associated Church Press. He lives in St. Louis, Missouri, with his wife and two teenage daughters.