I spent some time thinking about how my daughter would store the books over the 14 years and came up with the idea of a box. Next thought was..where would I buy one that would fit all three books. I tried Michaels and office supply stores and could not find anything that would work. Next thought I had was maybe I could make one. Not ever having made a box before I checked to see if I could find instructions on the net. Nothing I found really suited me, next was YouTube and that was a bit more helpful. Finally I decided to just wing it. I cut chipboard for the sides and cover. I used the same paper to cover the chipboard as I used on the books. I attached the sides using wide black book tape.
If you look closely at the front of the box you can see the two little knobs that I put on the hinged cover. The box is kept closed with small squares of Velcro on the inside of the cover.
The 3 books fit nicely inside.
My posting of Nov. 30, 2012 has links to the sites where I got my inspiration for the books.