Book-lovers know a friendship could be on the line when someone asks to borrow a book. If you say no, they get upset because you don’t trust them, but if you let them borrow it and they damage the book or conveniently forget they borrowed the book from you, well… it’s possible you might never recover from the emotional trauma of that loss.

You can salvage your friendships and your book collection – along with your sanity – with the Personal Library Kit, operating like old-school librarians to keep track of who has your precious reading material and how long they’ve had it.

The kit includes twenty self-adhesive pockets that can be applied to books, checkout cards, date stamp, inkpad, and a pencil. If you simply have no intention of ever letting your beloved books leave your home but have a serious, yet unexplainable, love for retro library equipment, you’ll be thrilled to know the accessories are stored in a modern, keepsake box that’s perfect for displaying.

Give your private library a sense of retro professionalism for just $6.29.