Philosopher's Stone-Ravenclaw, Harry Potter 1

Gryffindor, Slytherin, Hufflepuff, Ravenclaw ... Twenty years ago these magical words and many more flowed from a young writer's pen, an orphan called Harry Potter was freed from the cupboard under the stairs - and a global phenomenon started. Harry Potter and the Philosopher's Stone has been read and loved by every new generation since. To mark the 20th anniversary of first publication, Bloomsbury has published four House Editions of J.K. Rowling's modern classic. These stunning editions each feature the individual house crest on the jacket and line illustrations exclusive to that house, by Kate Greenaway Medal winner Levi Pinfold. Exciting new extra content includes fact files and profiles of favourite characters, and each book has sprayed edges in the house colours. Available for a limited period only, these highly collectable editions are a must-have for all Harry Potter fans.

Review: I've yet to meet a ten-year-old who hasn't been entranced by its witty, complex plot and the character of the eponymous Harry * Independent *

Spellbinding, enchanting, bewitching stuff * Mirror *

Teachers say a chapter can silence the most rowdy of classes * Guardian *

One of the greatest literary adventures of modern times * Sunday Telegraph *

The Harry Potter stories will join that small group of children's books which are read and reread into adulthood * TLS *