Knock Knock Personal Library Kit: Classic Edition

So cool! Such a fun gift for the librarian-want-to-be in your life. Love this kit!

I gave this gift to an avid reader who loans out books to her friends. She loved it! The only thing is that I wish there were more that just 20 self-adhesive pockets and card catalog checkout cards. There should be an option to buy addition packs, but I don't see that they sell them. I think they should provide that option upon checkout or as a suggestion/option at the bottom.