Andy Griffiths is an internationally successful, award-winning children's author. His books have been bestsellers in his homeland Australia, the USA and the UK. He is the co-creator of the bestselling, award-winning Treehouse series with illustrator Terry Denton, which has been published in over thirty countries. Andy thrives on having an audience: he has worked as a high school teacher; been the lead singer in a rock band and a stand-up comedian. He has two daughters and lives in Melbourne, Australia.The first book in the Treehouse series, 13-Storey Treehouse, won the Sainsburys Children's Book Award in 2015, the Lancashire Fantastic Book Award in 2016, as well as the 2016 Coventry Inspiration Award, and the fourth Treehouse book, The 52-Storey Treehouse, won the Australian Book Industry Awards Book of the Year prize – the first children's book to ever do so.Bill Hope has established himself as one of the most versatile illustrators and graphic recorders working in the industry. He has published several illustrated books including the Adventures Unlimited series and held a series of solo exhibitions which has ongoing representation through the Lost Bear Fine Art Gallery in Australia. His graphic novel An Interior Life won the Golden Ledger award for Australian Comics.