When I was looking in the drawer for my metal foil tape for yesterday's projects I ran across a bunch of kits I had made up for a workshop. They were to make 1 1/2 x 2 inch sticky note pads into tiny books.
I pulled out a couple of them and threw them together to put in my box of "quick things to give to someone". They use thin chipboard for the front and back covers and the spine, pieces of giftwrap to wrap the covers, colored paper tape for the spine, and a lining of a different gift wrap.
This picture shows them pretty close to life sized. I have instructions on making these over on my website.