I am not talking about simple ones like word clouds. But something more complex, beautiful
https://www.chrisharrison.net/index.php/visualizations/Bible...
I've actually played around work similar stuff, like constructing connection graphs of characters. One challenge is you need a big book with lots of characters to be interesting, and the book text needs to be available.
As for text, can’t you use project Gutenberg? There are also lots of copyright free books on archive.org
https://www.chrisharrison.net/index.php/visualizations/Bible...
I've actually played around work similar stuff, like constructing connection graphs of characters. One challenge is you need a big book with lots of characters to be interesting, and the book text needs to be available.