diagrams, photos, pop up, 3d, video, motion, slide out, scratch and sniff, sounds, music, slideshow, workbook, manual, coloring book, companion book, notes, fill in the blank, tests, research papers, cds, memory chip and other devices, mail in warranty, legal documents, menu, tv and radio programs, clothing, place or location, machine, ebook, guide, flannel graph, stickers, stamps, Bible, pamphlet, essay, toy kit, objects, keys, item, smells, tastes, touch, sight, food,
illustrated book – > non book, -> binder with training from the blog -> blog ->
simple – certificate at the back of the book
free picture. stickers, coupon? ribbon, different colors for different versions of the book. trade with others or collect all colors.