History? Curiosity? Some of them might contain interesting recipes? Some cookbooks might've been written in an interesting style? Some books might be able to gi

History? Curiosity? Some of them might contain interesting recipes? Some cookbooks might've been written in an interesting style? Some books might be able to give clues about miscellaneous uncertainties about the everyday life of people around that time? Or if not their life, perhaps they might shine light on how certain tools were used in ways we don't know? Perhaps some words used in these books are useful for linguists? Maybe we'll uncover some hidden etymologies. Also, reading stuff that's just out there can help shake up your mind in interesting ways. There are tons of possibilities.