Heir of Caladan, was released on November 22, 2022. Jon Michaud of The New Yorker wrote in 2013, "The conversion of Dune into a franchise, while pleasing readers and earning royalties for the Herbert estate, has gone a long way toward obscuring the power of the original novel." Short stories In 1985, Frank Herbert wrote an illustrated short work called "The Road to Dune", set sometime between the events of Dune and Dune Messiah. Published in Herbert's short story collection Eye, it takes the form of a guidebook for pilgrims to Arrakis and features images (with descriptions) of some of the devices and characters presented in the novels. Brian Herbert and Anderson have written eight Dune short stories and four Dune novellas, most of them related to and published around their novels. The eight short stories include "Dune: A Whisper of Caladan Seas" (2001), "Dune: Hunting Harkonnens" (2002), "Dune: Whipping Mek" (2003), "Dune: The Faces of a Martyr" (2004), "Dune: Sea Child" (2006), "Dune: Treasure in the Sand" (2006), "Dune: Wedding Silk" (2008), and "Dune: Red Plague" (2016). These eight short stories were published together in the 2017 collection Tales of Dune: Expanded Edition. The four novellas include "Dune: The Waters of Kanly" (2017), "Dune: Blood of the Sardaukar" (2019), "Dune: The Edge of a Crysknife" (2022), and "Dune: Imperial Court" (2022). The four novellas were published together in the collection Sands of Dune, which released on July 28, 2022. By other authors In 1984, Herbert's publisher Putnam released The Dune Encyclopedia under its Berkley Books imprint. Approved by Herbert but not written by him, this collection of essays by 43 contributors describes in invented detail many aspects of the Dune universe not found in the novels themselves. Herbert's estate later confirmed its non-canonical status after Brian Herbert and Kevin J. Anderson had begun publishing prequel novels that directly contradict The Dune Encyclopedia. The 1984 Dune film spawned The Dune Storybook (September 1984, ), a novelization written by Joan D. Vinge, and The Making of Dune (December 1984, ), a making-of book by Ed Naha. In November 1984, Pocket Books published National Lampoon's Doon by Ellis Weiner (), a parody novel. In May 1992, Ace Books published Songs of Muad'dib (), a collection of Dune-related poems written by Frank Herbert and edited by his son Brian. Brian Herbert and Kevin J. Anderson released The Road to Dune on August 11,