Trick or Treat is the first book to both examine the origins and history of Halloween and explore in depth its current global popularity. Festivals like the Celtic Samhain and Catholic All Souls' Day have blended to produce the modern Halloween, which has been reborn in America - but there are also related but independent holidays, especially Mexico's Day of the Dead. Lisa Morton explores the explosion in popularity of haunted attractions and the impact of events such as the global economic recession, as well as the effect Halloween has had on popular culture through literary works, films and television series. Trick or Treat takes us on a journey from the spectacular to the macabre, making it a must for anyone who wants to peep behind the mask to see the real past and present of this ever more popular holiday.