What is the UK’s most famous book?

The UK’s most famous book is Harry Potter and the Philosopher’s Stone by J.K. Rowling. Published in 1997, the first book in the Harry Potter series quickly became a global phenomenon, captivating readers of all ages. The series follows the adventures of a young wizard, Harry Potter, as he discovers his magical heritage and attends Hogwarts School of Witchcraft and Wizardry. The success of the book led to a seven-book series, films, merchandise, and a lasting cultural impact. Harry Potter remains one of the best-selling book series in history.