How to make a book by folding and cutting

This video illustrates how to "weave" together a fully functional "slot & tab" book. The process requires no tools. No glue. No sewing. Just paper. I learned how to to do this process by reading a... book, but alas, I have misplaced it and I am unable to provide proper attribution. (Pretty bad for a librarian!) The whole process is pretty ingenious if you ask me. For an elaboration, see: http://infomotions.com/blog/2010/01/how-to-make-a-book-2-of-3/