I spend days thinking about how to put together a book for my next assignment that had to do with 'past', 'present' and 'future' without being too literal. I decided to work with the evolution of the written form (e.g. quill, pencil and touch among other examples). The construction was difficult but I used some really nice materials like Italian decorative paper (front covers), inner felt lining, hoshi paper, transparent paper...and some handy double stick tape mixed with PVA...
My favorite part is when you stretch the book out as an accordion and see all the flags spread out in a juxtaposing direction.