Also, good post about counting worlds books: https://annas-blog.org/blog-isbndb-dump-how-many-books-are-preserved-forever.html https://annas-blog.org/blog-isbnd

Also, good post about counting worlds books: https://annas-blog.org/blog-isbndb-dump-how-many-books-are-preserved-forever.html https://annas-blog.org/blog-isbndb-dump-how-many-books-are-p...