The Road to Dune is a collection of science fiction works and related material by American writers Frank Herbert, Brian Herbert, and Kevin J. Anderson. A companion book to the Dune novels, the book was released in September 2005.
There's more to the story even than that. I read the draft of "They Stopped The Moving Sands" in The Road to Dune and wondered: whatever happened to the dune control project? It turns out that the grasses they planted then to control the dunes are now regarded as invasive species, and Boy Scouts earn merit badges by ripping them up.