One of the most useful features I've found in the app is the option to see recently sold listings for a specific title (when applicable) while setting up a listing and choosing a price.

It would be awesome to have just a regular spot in the app where we could go and enter or scan an ISBN to see what recently sold copies of a specific title have sold for, rather than it being buried within the listing creator (while still having access to it there, too, though!).