Bloomsbury released Harry Potter and the Philosopher’s Stone in the United Kingdom.
The London-based publisher issued Rowling’s debut Harry Potter novel on 26 June 1997. The book became the first volume in a seven-book series and quickly developed from a modestly promoted children’s novel into an international publishing success. Bloomsbury remains closely associated with the British editions of the series.
A common mix-up involves Scholastic, which published the books in the United States. The American edition changed the title to Harry Potter and the Sorcerer’s Stone, while the British edition retained Philosopher’s Stone. Bloomsbury’s original publication is therefore the key answer when the question specifies the United Kingdom.