Mark Spark in the Dark

Jacqueline Wilson wrote her first novel when she was nine years old, and she has been writing ever since. She is now one of Britain's bestselling and most beloved children's authors. She has written over 100 books and is the creator of characters such as Tracy Beaker and Hetty Feather. More than forty million copies of her books have been sold.

As well as winning many awards for her books, including the Children's Book of the Year, Jacqueline is a former Children's Laureate, and in 2008 she was appointed a Dame.

Jacqueline is also a great reader, and has amassed over 20,000 books, along with her famous collection of silver rings.