The Wallbook Timeline Collection is a box set containing three hardback What on Earth? wallbook timelines covering a complete spectrum of knowledge from Big History and Nature to Science. Each volume has been created in association with the American Museum of Natural History and includes a unique ten-foot-long fold-out timeline with more than 1,000 pictures and captions. Key moments from the timelines are told in a series of more than 80 newspaper articles, with a section of letters-to-the editor and fun-to-do quizzes. This set is an encyclopedia of knowledge through visual Timelines unlike anything ever produced before in a beautiful collection of hard-bound editions. Perfect for ages 6 to infinity!