To celebrate the 15th anniversary of the publication of Harry Potter and the Philosopher’s Stone, Bloomsbury Publishing is launching a competition to find the UK’s biggest Harry Potter fan.

To enter fans need to write a letter of no more than 50 words explaining why they love Harry Potter. The organisers are looking for the most creative, clever and entertaining reasons and while the word limit is set to a strict 50 words, entrants are encouraged to draw, doodle and make their letters as elaborate as possible. 

Fans can enter by visiting Chelmsford Library and posting their letters in the special post box. The competition runs until Tuesday 31 July 2012. 

County Councillor Jeremy Lucas, Cabinet Member for Customer Service, Environment and Culture said: “Come along to Chelmsford Library to show us how much you love Harry Potter and while you are there, why not take the opportunity to explore the fantastic resources available at Essex County Council Libraries.”