A few years ago, three separate books were discovered in Harvard University's library that had particularly strange-looking leather covers. Upon further inspection, it was discovered that the smooth binding was actually human flesh... in one case, skin harvested from a man who was flayed alive. Yep, definitely the creepiest library ever.
Harvard's creepy books deal with Roman poetry, French philosophy, and a treatise on medieval Spanish law for which the previously mentioned flayed skin was used. The book, Practicarum quaestionum circa leges regias… has a very interesting inscription inside, as The Harvard Crimson reports.
The book’s 794th and final page includes an inscription in purple cursive: ‘the bynding of this booke is all that remains of my dear friende Jonas Wright, who was flayed alive by the Wavuma on the Fourth Day of August, 1632. King Mbesa did give me the book, it being one of poore Jonas chiefe possessions, together with ample of his skin to bynd it. Requiescat in pace.’