Andrew trained as a mathematician, and though he's always been interested in the visual, came to art later in life. He studied comic-making with Adam Murphy and hones his drawing cartooning skills on his comic website http://invisibules.org . Having met the hippopotamuses at Whipsnade zoo he became obsessed with sketching them and making anthropomorphic doodles of them. He has self-published a picture book "One Hippo Skates" . Andrew occasionally teaches cartooning workshops.