Tohby Riddle is a multi-award-winning creator of picture books and illustrated books that have been published in many languages throughout the world.

Recent titles include Unforgotten and The Greatest Gatsby: a visual book of grammar. He has also written a novel; was the cartoonist for ten years at Good Weekend (the Saturday magazine of the Sydney Morning Herald and Melbourne's Age); and is a former editor of the The School Magazine, a literary magazine for children published by the NSW Department of Education.

Tohby is based in the Blue Mountains town of Katoomba in Australia.