Jim's childlike understanding of the world that surrounds him is enhanced by Raymond Briggs's subtle and inventive illustrations. Fantasies are portrayed as organic clouds that move between and overlap outlined panels of his reality, and myopic Jim is drawn smaller and softer than the policemen and bureaucrats interested in impeding his search for adventure. As he begins to infringe more seriously on the law, the city workers and their speech boxes become increasingly angular, much like the rigid rules and regulations restricting his sincere quest. With this playful style, Briggs expertly transforms common feelings of inadequacy into an endearing and enjoyable experience that speaks across generations, concluding with an optimistic implication that even a misfortunate outcome can be better than no change at all.