On June 26, 1997, Bloomsbury Publishing released Harry Potter and the Philosopher's Stone in Britain, a debut novel by Scottish author Joanne Rowling writing under the pen name J. K. Rowling. The 309-page book introduced eleven-year-old Harry Potter, an orphaned boy living miserably with his aunt and uncle, who discovers on his birthday that he is a wizard and has been accepted to Hogwarts School of Witchcraft and Wizardry. Rowling had conceived the character during a delayed train journey from Manchester to London in 1990, and spent the next seven years developing the seven-book series structure and the wizarding world's intricate rules, history, and geography while raising her daughter as a single mother in Edinburgh.

The book's initial print run was modest: just 500 copies, mostly hardcover editions destined for libraries. The literary establishment was cautious about children's fantasy at the time, and Rowling faced twelve publisher rejections before Bloomsbury's Barry Cunningham took the chance, though he advised her to get a day job since children's books rarely made money. The story followed Harry's first year at Hogwarts, where he made friends in Ron Weasley and Hermione Granger, encountered the eccentric Dumbledore, and uncovered a mystery involving a hidden magical stone and the dark wizard Voldemort who had killed his parents when Harry was a baby.

Within months, the book won the Smarties Prize and generated word-of-mouth enthusiasm that astonished publishers and booksellers alike. By the time the American edition appeared in September 1998 as Harry Potter and the Sorcerer's Stone, the British version had already sold over 100,000 copies. The series would ultimately span seven volumes published between 1997 and 2007, becoming the best-selling book series in history with over 600 million copies sold worldwide and spawning a eight-film franchise worth billions. That modest first print run of 500 copies launched not just a literary phenomenon but a cultural force that revitalized children's reading and proved that intelligent, character-driven fantasy could captivate readers of all ages.