People note Dune (1965) of American science fiction novelist Frank Patrick Herbert for its intricate plot and its broad intellectual scope. Frank Herbert authored five critically acclaimed and commercially successful sequels to this best-known work. Widely considered among the classics in the field of science fiction, the Dune saga, set in the distant future and taking place over millennia, dealt with themes, such as human survival, human evolution, ecology, and the intersection of religion, politics, and power. He was the father of fellow author Brian Herbert.