The "Bartimaeus Trilogy" is a series of fantasy novels written by Jonathan Stroud. It consists of three main books: The Amulet of Samarkand, The Golem's Eye, and Ptolemy's Gate. The story is set in an alternate version of London during the early 20th century, where magic is real and practiced by a ruling class of magicians. The narrative follows a young magician named Nathaniel and a sarcastic, ancient djinni named Bartimaeus. The trilogy is known for its unique storytelling style, combining first-person and third-person perspectives. It explores themes of power, class, and morality, while also providing humor through Bartimaeus's witty commentary. The series has received critical acclaim and has a dedicated fan base, making it a significant work in contemporary children's literature.