The pages of literature contain many famous cats, including The Cat in the Hat, the Cheshire cat and Puss-in-Boots.
What does pages indicate in the above context? Thanks.
It refers to all literature, but makes it concrete by saying pages. So it just means 'Many cats are mentioned/dealt with in literary works...'. It wouldn't be wrong just to say 'Literature contains...', but the reference to "pages" makes the transition from abstract (literature) to concrete (actual references to cats) smoother.