I took this class and loved it!! I made several of these.

I decided to play around a little with this idea, and I made larger ones, with a 1" spine and 3 signatures. I also added fabric for the cover, and lined the inside of the cover with deckle-edge watercolor paper. I used matboard this time, and 11 x 14" matboard works great. I just had to trim 1.5' off the bottom to fit the 9 x 12" pages with some overlap. 

I really love thsi book! Thank you for such a wonderful idea!