Reads like a book or hangs on a wall! 13.7 billion years beautifully illustrated on a unique 2.3 metre-long timeline...The What on Earth? Wallbook of Big History features more than 1000 illustrations depicting millions of years of evolution, the rise and fall of civilizations, 100 of the top battles and, on the reverse, the story of planet, life and people from the Big Bang to the present day....an exhilarating journey through the past.