Graham Jolliffe is the illustrator of the Wicked Willie books that have been published world wide such as the easy peasy people series. He uses ink, and colours his work using the TRIA marker system from Letraset. He started as an advertising copywriter with Maxwell Clarke on Fleet Street but then became a cartoonist and illustrator; for example illustrating One Man and His Bog by Barry Pilton in 1986. He became Cartoonist of the Year in 1997 and has worked for the Boase Massimi Pollitt (BMP) agency. He wrote the Wicked Willie books with Peter Mayle.