How to: Read books buried 2000 years ago

When the first excavations of the ancient Roman town of Herculaneum began in 1738, the diggers found what appeared to be charcoal and half-burnt logs. In reality, those blackened lumps were papyrus scrolls. Buried beneath the detritus of Mt. Vesuvius, a Herculanean villa contained a whole library of the things. And now, thanks to micro-CT imaging and other digitization techniques, researchers are finding ways to read those scrolls.