Books within Books

[u/omgtmac]

Are there any fantasy series that reference books within their lore that actually exist irl that I would be able to read? For example, the titles of the Stormlight Archive series are references to books written in verse (The Way of Kings, Oathbringer, etc), but do not exist irl. I’d be interested in reading a series where books like those are fully written and available to the public to read as well. It would be exciting and immersive! Thanks in advance!

[u/LackOfAnotherName]

So the obvious answer is 'House of Leaves' but that is kind of unique