Okay, not really.
If you’ve never heard of the Voynich Manuscript then you should click the provided link.
In case you didn’t (I’ll know if you didn’t!) here’s a quick rundown of the mysterious contents (the contents, not why they’re mysterious)
A section on herbs and plants.
A section on astronomy (with lots of naked women – also a fold-out).
A section on fantastical creatures (with lots of naked women).
A section on a fictional cosmology.
A section on pharmaceuticals.
Lists of recipes.
What is it? The genius author of xkcd knows.