In this week’s Spectator Books I’m talking to Peter Stanford, author of Angels: A Visible and Invisible History. Why is it that, according to some polls, more people believe in angels than believe in God? Peter takes us on a tour through history, theology and literature to find how the winged cherubs on our Christmas cards got there, and why they look as they do. Along the way he addresses some of the vital questions. Do angels have wings — and if so, how many? What are they made of — light, or compressed air? Are they above or below humans in the hierarchy of creation? Which is the friendliest archangel: Michael, Gabriel or Raphael? And how many can dance on the head of a pin?