Harry Potter: The boy who transformed Britain for ever

As the final film is premiered this week, Kate Youde examines the legacy of J K Rowling's wizard

The end is nigh: when the last instalment of Harry Potter's battle against the Dark Lord premieres in London on Thursday, a global, multibillion-pound franchise will wind down.

Harry Potter and the Deathly Hallows: Part 2 is the culmination of 14 years of Pottermania that has swept the globe since hordes of readers fell under the spell of J K Rowling's first book, Harry Potter and the Philosopher's Stone, in 1997. Yet the wizardry phenomenon's influence on the nation is far from over: the seven books and eight films have changed the landscape of our publishing and film industries and left lasting legacies.

The seven films released to date have taken more than £3.6bn at box offices worldwide, according to Rentrak EDI. More significantly, all eight Potter movies were made in the UK.

Adrian Wootton, chief executive of the British Film Commission, says the UK film industry is "stronger because of Harry Potter". The franchise not only employed thousands of people but also allowed for investment in and development of infrastructure, creating a highly trained workforce and the capacity for other blockbusting franchises, such as Sherlock Holmes and Batman.

But of course the magic began in publishing: UK sales of Potter books total more than £225m, according to Nielsen BookScan. Not bad, considering Rowling has said her first manuscript was turned down by "lots" of publishers before being bought by Bloomsbury in 1996.

Jon Howells, a spokesman for the bookseller Waterstone's, said Harry Potter made publishers "take children's books really seriously as a category where we could sell huge volumes of books" and paved the way for other series, such as Philip Pullman's His Dark Materials trilogy and Eoin Colfer's Artemis Fowl books.

Even if you do not know quidditch from horcruxes, it has been impossible to escape the boy with the lightning-bolt scar: from boosting the film industry to raising interest in magic, Harry Potter has made his mark.