Horrid Henry is a fictional character created by Francesca Simon and illustrated by Tony Ross. The first Horrid Henry book was written and published in 1994 by Orion Books and as of the end of 2009, there have been eighteen titles published, as well as numerous collections, activity books and joke books. The Horrid Henry stories are read on audiobook by the actress Miranda Richardson, and published by Orion Audio. The combined sales of all the Horrid Henry books and audiobooks now stands at over fourteen million copies. Horrid Henry is published in twenty five languages around the world. In April 2009, the US Sourcebooks' Jabberwocky imprint released four Horrid Henry paperbacks nation-wide which included "Horrid Henry," "Horrid Henry's Stinkbomb," "Horrid Henry and the Mega-Mean Time Machine," and "Horrid Henry Tricks the Tooth Fairy." In February 2008, an exhibition, "Up to Mischief with Horrid Henry", opened at the Seven Stories Centre for Children's Books in Newcastle, England