Reviving this old thread (which dates back to 2019) are there any plans to add more categories? I index a lot of books and I definitely run into a lot of cases where it's hard to properly categorize. For example I have to use Art and Design for graphic novels and comic strip books so Charlie Brown and The Hulk are listed next to books on Da Vinci. And there definitely needs to be categories for Western and Military/War, at the very least as those are two major genres of fiction. One for Plays would also be good as otherwise one cannot properly categorize, say, Shakespeare or Eugene O'Neill or George Bernard Shaw books.