What are some popular Robert Heinlein novels?

Some of the popular ones are 'Stranger in a Strange Land'. It's a thought - provoking novel that explores themes like human nature, sexuality, and religion in a really unique way.

Probably 'Stranger in a Strange Land' and 'Starship Troopers'. They are widely read and discussed.

One of his popular works is 'Stranger in a Strange Land'. It tells a story about a human who was raised on Mars and then comes back to Earth, dealing with cultural differences and exploring themes like love, religion, and human nature.

Definitely 'Starship Troopers'. Its view on military service and society has been widely debated. It has a large fan base because of its action - packed story and the interesting world - building.

One of his popular books is 'The Moon Is a Harsh Mistress'. It's set on the Moon and deals with themes of revolution and independence. It presents a complex society on the Moon and how the inhabitants strive for freedom from Earth's rule.

Another great one is 'Starship Troopers'. It has a complex view of military service, citizenship, and politics, and it's not just about the bug - fighting action as some might think at first glance. It delves deep into what it means to be a part of a society and contribute to it.

Another great one is 'Starship Troopers'. It delves into military life, citizenship, and the idea of sacrifice. The book has an interesting take on how a society might be organized around military service. It's not just about bug - hunting in space, but also about deeper moral and political concepts.

Well, 'The Moon Is a Harsh Mistress' is also quite popular. It tells an engaging story about a lunar colony's fight for independence. These works are popular because Heinlein was great at creating vivid futures and exploring complex ideas like politics, human nature, and ethics in the context of science fiction.

One common theme is the exploration of future societies. Heinlein often imagined different social structures in his short stories. Another theme is individualism, showing characters who break free from constraints. Also, the concept of space exploration features prominently, as he was interested in humanity's expansion into the cosmos.

Another great one is 'Starship Troopers'. It has a detailed military - science - fiction world, with strong themes about citizenship, duty, and the role of the military. It's not just about the bug - hunting action but also makes you think about society. Well, it also had some controversial elements which added to its depth and discussion - worthiness.