British cartoonist arguably most recognized for his Molesworth series. He was a two-time winner of the National Cartoonist's Society Advertising and Illustration Award (1959; 1965).
He attended the Cambridge College of Arts and Technology.
He received the German Order of Merit in 2009.
His father worked at Cambridge Railway Station as a porter.
Simpsons creator Matt Groening has considered him a huge influence on his aesthetic and style.