Have you ever wondered about the origins of Halloween? Where does the word Halloween come from? What is the origin of the term trick or treat? Why do we carve jack-o'-lanterns? And how did costumes come into play? I don't know the answers to any of these questions. But luckily we have someone here who does know. Joining me today is the horror author and screenwriter Lisa Morton. Lisa’s novels and short stories have won numerous awards, including the Stoker Award. She’s written screenplays for feature films and television and has appeared as a Halloween expert on The History Channel's The Real Story of Halloween. And that’s what we are going to talk to Lisa about today because she has a book that just came out called Trick or Treat: A History of Halloween, published by Reaktion Books.