Free Comic Book Day is being held tomorrow (May 3rd) at Back to the Past Collectibles. Spider-man will be there to welcome guests! There will be free raffles with lots of cool prizes and much more. Back to the Past is in Livonia at 27462 Schoolcraft Road. This event will be held between 11-7 PM. Free Comic Book Day is a single day when participating comic book shops across North America and around the world give away comic books absolutely free to anyone who comes into their stores.