American Girly DIY school supplies *MEMO: Gives a list of supplies that you can do with tutorials covering each. Check out video link (provided by 'Chrissy's comment) for making mini books using the method of origami.
This is adorable! Personally, though, I would make mine a 3 ring binder as most loose leaf binders like this are three rings. Just add a jump ring to the center. Just add an extra jump ring to the center.