The original Dune series by Frank Herbert consists of six novels: Dune, Dune Messiah, Children of Dune, God Emperor of Dune, Heretics of Dune and Chapterhouse: Dune. However, in 2012, Brian Herbert and Kevin J. Anderson expanded the universe with prequels such as House Atreides, House Harkonnen, and House Corrino, which add another four books to the series. Additionally, there are several spin-off novels, short story collections, and adaptations that contribute to the overall Dune lore. When counting the main series by Frank Herbert, there are six core books, but if we include the expanded universe, the total number of 'Dune' novels grows to ten.