Thank you for your answer
I am making an application with your api
Your api is very good
But if possible, increase the number of requests per month
thanks a lot

Hello. Thanks for you comment.
At the moment there are a lot of supported categories. Here’s a brief list of the most popular genres.
At the end of the comment there’s also a link for the full list of compatible genres, if it is of your interest.

Art
Biography
Business
Chick Lit
Children’s
Comics
Contemporary
Cookbooks
Crime
Fantasy
Fiction
Graphic Novels
History
Horror
Humor and Comedy
Music
Mystery
Nonfiction
Philosophy
Poetry
Romance
Science Fiction
Self Help
Suspense
Sports
Thriller

https://www.goodreads.com/genres/list