> The idea is to have, tucked in the back matter, elaborate indexes that allow users to find whatever topic they’re looking for — by flipping pages back and for

> The idea is to have, tucked in the back matter, elaborate indexes that allow users to find whatever topic they’re looking for — by flipping pages back and forth. Yes, that's a huge advantage tomes have over scrolls, for example. It was a big breakthrough! > Perhaps hyperlinked electronic versions will soon make things easier. Or this thing called "search," maybe. I don't think the author has done any study on or deep pondering abuot different media, how they came about or how they work.