The product is a vintage paperback collection of Edgar Rice Burroughs' "The Martian Tales" series, featuring the first four books in the series: "A Princess of Mars". Published in 1984 by Del Rey Books, the novels are set in a fantasy science fiction world and follow the adventures of various characters on Mars. Written in English and with a vintage feel, these books are a must-have for fans of adventure and fantasy genres, offering readers a unique and immersive narrative experience. See photos, book 4 is Ballantine Books