Andrew Joyner is a cartoonist and illustrator from Australia. The Horrible Plop was his first picture book, and it was published in 2009. Andrew created his own book series based on Boris, a daring warthog, not long after. He also illustrates for newspapers and publications on a regular basis, in addition to his children's book projects. Andrew, his family, and nineteen pets live in Strathalbyn, South Australia.