How books get scanned.

My dumbass always pictured an old librarian with gloves at the copy/scanning machining having to redo it over and over because it scanned crooked.

@Ask_aubry Back in the day, your description was pretty accurate. We'd cut off the spines and throw everything on a flat-bed scanner to make it easier. Of course, you killed a lot of books that way.
@davidhooper @Ask_aubry some of us without access to these fancy machines still do it that way (cutting off the spine and putting the stack on a high-speed scanner that will pull through the pages one at a time and scan both sides). I work in a library that does it that way. Of course we're talking about currently in print books not rare ones.