Adhere the cardboard as shown. This picture shows the outside.
That's the inside. As you can see, i adhered also cardboard to the inside spine for more stability.
Now you can start to decorate it.
I painted all the edges (inside and outside) with black acrylic paint. For the round closure i used pitch black alcohol ink.
Finally adhere the paper. I used Cosmo Cricket *circa 1934*
I did only the outside, because i don't know what embellishment i'm going to use for the cover.
So, if i'm going to use brads which you will see inside, i can cover them up later.