Ultimate Star Wars is a canon reference book written by Ryder Windham, Tricia Barr, Adam Bray, and Daniel Wallace, including a foreword by actor Anthony Daniels, who plays C-3PO in various forms of Star Wars media. The book was released by Dorling Kindersley on April 28, 2015, and on September 1, 2015, a special edition with frame images, props, and behind-the-scenes shots of the cast and crew of Star Wars: Episode VII The Force Awakens, as well as two behind-the-scenes prints, was released. The reference book features info on characters, locations, weapons, and vehicles pulled from various corners of Star Wars canon.