Harry Potter play script to be published as book

The author’s website, Pottermore, confirmed that the script of the new stage play Harry Potter And The Cursed Child will be released as a book on July 31 — the day after the play’s world premiere and, fans will note, Harry’s birthday.
The Cursed Child is officially the eighth book in the Harry Potter canon and will be released in two versions: a ‘Special Rehearsal Edition’ using the script performed in the play’s previews, before being replaced later by a ‘Definitive Collector’s Edition.’