What was the first Harry Potter novel written by J.K. Rowling?

The first Harry Potter novel written by J.K. Rowling was Harry Potter and the Philosopher’s Stone.

The book was first published in the United Kingdom by Bloomsbury on 26 June 1997. It introduces Harry Potter, Hogwarts School of Witchcraft and Wizardry, and central characters including Ron Weasley and Hermione Granger.

The first American edition was published by Scholastic under the title Harry Potter and the Sorcerer’s Stone. “Philosopher’s Stone” is the original British title, while “Sorcerer’s Stone” is the title used in the United States and some other markets.

The novel’s success began a seven-book main series. It was adapted into a feature film released in 2001, directed by Chris Columbus, with Daniel Radcliffe, Rupert Grint, and Emma Watson in the leading roles.