Dub (David) Leffler is one of thirteen children and grew up in the small town of Quirindi, south of Tamworth in New South Wales. He is descended from the Bigambul and Mandandanji people of south-west Queensland.
He began his visual arts career as an animator and has worked as a muralist and art teacher. He has illustrated several children's books and has collaborated with internationally recognised illustrators such as Colin Thompson, Shaun Tan and Banksy.