Their is no automatic way to do it you have to manually put books in shelves and sometimes they get lost if you keep books on the sd card.
I personally prefer using folders instead by using calibre send to device. Btw if you or your friend are even slightly into tech and don't mind rooting and stuff. I would recommend rooting and installing coolreader for non drm ebooks. It is a lot better than the Nook internal reader you will still need to use the nook reader for Library books.
"Too often we... enjoy the comfort of opinion without the discomfort of thought"-JFK