Frank Herbert’s sci-fi space opera novel Dune has been wildly influential since it was first released in 1965. And not just on other novels. Its influence has been felt in movies, video games, and, of course, comic books. So it’s fitting that Dune would become the subject of its own comic book adaptation. In the following email interview, the artists working on this visual version — Patricia Martín and Raúl Allén— discuss the second book of three, Dune, The Graphic Novel, Book 2: Muad’Dib (hardcover, Kindle).