PULL by Kate Callan. paper, string x Pull contains eight explorations of string formations when fully open. Some strings continue through the pages making it impossible to view more than one page at a time.
Dos-A-Dos accordion fold book tutorial from Playing with Paper by Helen Hiebert. P&P: never heard of this type of book, but it can be printed on one sheet, which is economical, and can also be two books in one.