'Sophie Blackall’s If You Come to Earth shares the vast scope of “You Matter,” though its text is more explicit in its grand objective. Her narrator is Quinn, a red-hatted young child based on a real person in Blackall’s life. The real-life Quinn has lived in Nigeria, Indonesia and Nepal, but Blackall met him in her native Australia and saw the globe-trotting young person as a worthy guide. “Dear Visitor from Outer Space,” Quinn begins, “if you come to Earth, here’s what you need to know.” From there, Blackall delivers on the promise. The book seems to contain everything — the world’s every river, flower, person, cruise ship and bottlecap. It covers sight, sound, sickness, conflict and inequality. It is overwhelming.' (Introduction)