The Moon Is a Harsh Mistress
Heinlein became one of the first American science-fiction writers to break into mainstream magazines such as "The Saturday Evening Post" in the late 1940s. He was one of the best-selling science-fiction novelists for many decades, and he, Isaac Asimov, and Arthur C. Clarke are often considered the "Big Three" of English-language science fiction authors. Notable Heinlein works include "Stranger in a Strange Land", "Starship Troopers" (which helped mold the space marine and mecha archetypes) and "The Moon Is a Harsh Mistress". His work sometimes had controversial aspects, such as plural marriage in "The Moon is a Harsh Mistress", militarism in "Starship Troopers" and technologically competent women characters that were formidable, yet often stereotypically feminine—such as "Friday".