Repairing Paperbacks

I recently found a copy of a book I've been looking for for years in an old antique shop, however it's cover was falling off and one signature was almost completely separated. I managed to repair it by scraping away some of the old dried and flaking away glue and then applying a thin layer of regular old Elmer's Glue-All to the inner spine of the cover.
Then I pressed it all together, wrapped it up (but not too tight) with some rubber bands and placed another heavier book atop it and let it sit 24 hours.

It's not a perfect repair by any means but it's much much better than it was before.