For years, the Harry Potter franchise has awakened the imaginations of fantasy fans around the world, and Harry Potter and the Cursed Child is a polarizing part of that legacy. With seven novels, eight movie adaptations, three films centered around the Fantastic Beasts sub-franchise, video games, and the upcoming Harry Potter HBO series, the wizarding world of controversial author J.K. Rowling has only continued to expand. Having conquered every other storytelling medium, it seemed only natural that Harry Potter’s reach would extend to live theater.

https://screenrant.com/what-is-harry-potter-and-the-cursed-child-about-canon/