Please don't bother, they're massively overrated. There's much better "magical boarding school" fantasy out there. The world-building and writing in HP are really shoddy. A lot of the characters represent unexamined stereotypes about Jewish people, POC, and fat people. Not to mention the author is a virulent transphobe who is using her wealth and power to actively lobby for harmful policies. If you missed the Harry Potter nostalgia train, don't buy a ticket now.