Harry Potter Book Day 2024. Harry potter book day, formerly harry potter book night, will be held on october 12 this year to celebrate and allow fans to immerse themselves in the wizarding world of harry potter for one day. Harry potter book day is a chance for fans around the globe to celebrate j.k.
What is harry potter book day? Harry potter fans will have even more reading material come september with the release of a new book based on the wizarding world.