Nailed the atmosphere, the background droning sound really makes the game feel tense and i like how you first introduced the ladders and switches in a safe environement so that you can spot them easily when it gets real and you have to avoid the books while searching for them.
I liked the controls of being able to turn and strafe even without mouse controls, but the ennemies seem a bit hard to avoid at times especially since they can come from behind where you can't see or hear them.
However i feel like you did just the right balance when you are caught of it still being like "oh shit i'm dead" and not just be some cheap surprise jumpscare with just a loud sound, so thanks for that ^^
And i also like the kind of lovecraftian feel you get from the player character sort of writing his journal while he tries to escape the library, like he does it to keep his sanity in this mysterious weird place.
well done dude :)