I made the basics of my book from this website
I made a few adaptations for my book. I used cardboard for the cover, I need more durability then just paper. I also added a scrap of material to the spine (I just liked the look). I also made my string that I sewed the pages together with a little to long so I turned it into a tie to keep the journal closed.
I'm making my sketchpad for a comic I hopefully will be working on soon so I decorated the covers with things I thought went with my story (Eva is one of the characters). I used pieces of scrapbook paper, stickers and anything else I found around the house that I thought would work.