Kjartan Poskitt was born in York and is an author and TV presenter. His best-known books are the Murderous Maths non-fiction series and the novels about Urgum the Axeman. He has also written songs and plays, annuals, quiz books, and for television. Sachin Nagar, a resident of New Delhi, India, used his knowledge of technology after completing a professional degree in computer applications to strengthen his artistic skills by also doing a diploma in animation. Sachin is a highly driven artist on a quest to excel. Amit Tayal was born and raised in Delhi, and grew up reading comic books. He went on to become an animator before turning to full-time illustration, specializing in games and books for children.