Knock Knock Timeline Book chronicles the pop-cultural juggernaut that is breakfast Cereal for amateurs and aficionados Hardcover book with 14 foldout accordion-style panels, 12 photo-realistic illustrationsClosed book is 3.25 by 3.5-inch, unfolds to 45.5 by 3.5-inch; magnetic closureMeticulously researched information presented in a fascinating and entertaining format; makes a fun and unique giftCorn Flakes, Rice Krispies, Kix, Cheerios, Frosted Flakes, Trix, Life, Lucky Charms, Apple Jacks, Fruity Pebbles, Cookie Crisp, GoLean Crunch