cut paper twice as lone as you want the pages to be. Next punch holes in the center and sew along the holes, adding a thin piece of card board on top. then fold in half and press it closed over night. you should now have note book with a cover. Now glue thin strips of cardboard to simulate the tardis. paint blue and your done! Please post pics in the comments below!
UPDATE! 4/9/ 14
After looking at the prop I went back and completely remade the cover ( bottom pic)