On October 10, 2015, bookstores, libraries, and retailers will participate in the fourth annual installment of the global event, featuring signings, parties, and more. Participants in the events and festivities include: Disney-Lucasfilm Press, Marvel, Abrams, Chronicle, Del Rey, DK, Quirk Books, Scholastic, Workman, Egmont, Studio Fun, Phoenix International Publishing, and many more.