Lyon Musee de Beaux Arts

I have been travelling and have resolved to come back with books, not the raw materials for books!
so here are 3 tiny books (2.5cm square) i made this morning from the brochure of the musee des beaux arts, 1 from a menu for a local lyonnais restaurant, and 1 from the flyer telling what and how to recycle. (no one mentioned the option of making a book out of the flyer!)
The 5 books vary in thickness from 1.3 to 2 cm (depending on how many pages I used!).
I suspect i will need to make some more robust way to keep them together: the belly band has been glued to the concertina, and it’s just 2 slits. Perhaps I’ll find some leather or something (which may then bring the series together better than the assorted colours currently do.