Petra James is the author of ten books for middle-grade readers.

She has worked in publishing for more than twenty years, and has been a children's publisher for thirteen of these.

Andrew Joyner is an Australian illustrator and cartoonist. In 2009 his first picture book was published, The Terrible Plop, written by Ursula Dubosarsky. The book has been shortlisted for many awards (including the CBCA Book of the Year 2010 and the PM’s Literary Awards 2010), and has been made into an acclaimed play - Plop! - by South Australia’s Windmill Theatre.

In 2011, Andrew released his own series of books, All About Boris, a loveable and adventurous warthog. Along with his children’s book work, Andrew illustrates regularly for newspapers and magazines, both locally and internationally, and in 2010 he illustrated Your Place or Mine? a cookbook by Gary Mehigan and George Calombaris of Masterchef. He lives in Strathalbyn, South Australia, with his family and nineteen pets.