The Story of Tracy Beaker, written by Wilson and illustrated by Sharratt, was the most borrowed library book in the UK for the first decade of this century. The books on which they have collaborated have sold more than 30 million copies in the UK.
He lives in Edinburgh and works full-time as an illustrator.
Author's Comment: Q: Who is your favourite character to draw?
A: It would have to be Tracy Beaker and I've drawn her more times than any other character.