My son was given the book Where On Earth? by Dorling Kindersley (DK Publishing) as a gift from his grandmother after undergoing minor surgery. He loves maps, and so this book was entirely fitting. As a curious soul, he plunged into the extraordinary pages that are full of photo maps (more than 80 of them!) that include both amazing photography and brilliant illustrations.         A Perfect Book for Explorers!   Each fact-filled page features a map with a unique focus. The book is broken up into six categories: Land, Sea and Air; Living World; People and Planet; Engineering and Technology; History; and Culture.…