US Patent 7258367 Loosely bound book with foam-based pages

A loosely bound book of foam-based pages includes a plurality of pages, each page including a middle foam plate and front and back semi-rigid paper plates mounted on and sandwiching the middle foam plate and at least one binder slot formed in each of the pages, the binder slot extending entirely through the middle foam plate and the paper plates. At least one binding strap is extendable through the binder slot of each of the pages for binding the plurality of pages in a book and at least one releasable binding strap closure device is mounted on the binding strap, the releasable binding strap closure device operative to open and close the binding strap to permit pages to be added to and removed from the loosely bound book.