"Good Demon" by Jimmy Cajoleas is a captivating young adult fiction book that delves into the supernatural world of a good demon named Diablo. The book spans over 300 pages and is available in trade paperback format. It is published by Abrams, Inc. in 2019 and the language used in the book is English. The book measures 5.5 inches in length, 8.2 inches in width, and 1.1 inches in height. The genre of the book is juvenile fiction, young adult fiction, horror, and social themes. The topic covered in the book includes paranormal, occult and supernatural, and friendship.