Come for ANY part of this 3 hour window! Putting your name down does not commit you to all 3 hours! I'm happy with any amount of help.
Lots of help needed to shelve and rearrange all the books as they come in. Also, it is likely the books will need to be shifted on the shelves to accommodate new books. The end of year inventory can't be started until the books are shelved so the more help the better!