As far as I know, the Incas had a lot of books, not the Mayans. The Spaniards burned them for considering heresy.
(They did have a knotted string message system, but it couldn't contain full language: https://en.wikipedia.org/wiki/Quipu .)
The Maya did have writing: https://en.wikipedia.org/wiki/Maya_script
If you don't know, and don't want to spend a few seconds searching, asserting things doesn't contribute to the conversation.