^"SCI FI Channel Auction to Benefit Reading Is Fundamental". PNNonline.org (Internet Archive). March 18, 2003. Archived from the original on September 28, 2007. Retrieved September 28, 2007. Since its debut in 1965, Frank Herbert's Dune has sold over 12 million copies worldwide, making it the best-selling science fiction novel of all time ... Frank Herbert's Dune saga is one of the greatest 20th Century contributions to literature.
^"Dune 7 blog: Conspiracy Theories." (December 16, 2005). DuneNovels.com (Internet Archive). Retrieved October 12, 2008. "Frank Herbert wrote a detailed outline for Dune 7 and he left extensive Dune 7 notes, as well as stored boxes of his descriptions, epigraphs, chapters, character backgrounds, historical notes — over a thousand pages worth."
^Neuman, Clayton (August 17, 2009). "Winds of Dune Author Brian Herbert on Flipping the Myth of Jihad." AMCtv.com (Internet Archive). Retrieved March 31, 2014. "I got a call from an estate attorney who asked me what I wanted to do with two safety deposit boxes of my dad's ... in them were the notes to Dune 7 -- it was a 30-page outline. So I went up in my attic and found another 1,000 pages of working notes."
^"Before Dune, After Frank Herbert." Amazon.com (2004). Retrieved November 12, 2008. "Brian was cleaning out his garage to make an office space and he found all these boxes that had "Dune Notes" on the side. And we used a lot of them for our House books."
^"Interview with Brian Herbert and Kevin J. Anderson." Arrakis.ru (2004). Retrieved November 12, 2008. "We had already started work on House Atreides ... After we already had our general outline written and the proposal sent to publishers, then we found the outlines and notes. (This necessitated some changes, of course.)"
^Ascher, Ian (2004). "Kevin J. Anderson Interview." DigitalWebbing.com (Internet Archive). Retrieved July 3, 2007. "... we are ready to tackle the next major challenge — writing the grand climax of the saga that Frank Herbert left in his original notes sealed in a safe deposit box ... after we'd already decided what we wanted to write ... They opened up the safe deposit box and found inside the full and complete outline for Dune 7 ... Later, when Brian was cleaning out his garage, in the back he found ... over three thousand pages of Frank Herbert's other notes, background material, and character sketches."
^Adams, John Joseph (August 9, 2006). "New Dune Books Resume Story." SciFi.com (Internet Archive). Retrieved December 19, 2007. "Anderson said that Frank Herbert's notes included a description of the story and a great deal of character background information. 'But having a roadmap of the U.S. and actually driving across the country are two different things,' he said. 'Brian and I had a lot to work with and a lot to expand...'"