This collection of Herbert's nonfiction consists mostly of essays and introductions he wrote for a variety of publications; two interviews by the editor help fill in biographical details. The book is divided into seven thematic sections, for which O'Reilly provides brief comments. Among topics covered are the origins of the Dune novels and Herbert's views on ecology, pollution, possible futures, and flying saucers; and a bibliography lists available American editions of each of Herbert's books.