Of oxen and books.

A geeky circulation question to ponder: here in the library we put the barcodes and stamp the due dates on the back cover of the book, which usually on the right side if you opened the book flat on its spine. However, whenever we encounter a book written in a language that goes from right to left (such as Hebrew or Arabic) instead of left to right, the barcode and due date will be found on the inside of the left cover. So far so good. But what if there was a book that was written boustrophedon - Greek for "as the ox plows" - i.e., left to right on one line, then right to left on the next line, then back from left to right, and so on and so forth? I don't know if there are any remaining civilizations who write in this fashion, but the ancient Greeks were quite fond of it and had no problem writing the mirror opposites of their alphabet as they jumped from line to line. I guess we'd just follow the direction of the pages in the book. But what would the convention be for a book in boustrophedon? If you ended a page going left to right, I guess you'd turn the page towards the right; but then what happens if on that page you finish on a line going right to left? Wouldn't you have to go back to left, onto the page you've already used?

Maybe this is why no one writes boustrophedon anymore.