Can you recommend the most popular interstellar science fiction books?

Sure. 'Ender's Game' by Orson Scott Card is quite popular. It's about a young boy trained to fight in a future war against an alien race. Another great one is 'Dune' by Frank Herbert. It has a complex world-building with political intrigue and unique ecological concepts.

Sure. 'The Expanse' series by James S. A. Corey is very popular. It's set in a future where humanity has colonized the solar system and there are political tensions between Earth, Mars, and the Belt. Another great one is 'Annihilation' by Jeff VanderMeer. It has a really strange and mysterious world that is both fascinating and a bit creepy. 'Blindsight' by Peter Watts is also popular, with its complex exploration of consciousness and alien intelligence.

For beginners, 'Harry Potter' is a great start. It has an easy - to - follow story, interesting characters, and a magical world that's very engaging. Another good one is 'The Hobbit' which is a shorter and more accessible work compared to 'The Lord of the Rings' series. It gives a taste of Tolkien's rich fantasy world.

Another popular one is 'Brave New World' by Aldous Huxley. It depicts a future society where people are genetically engineered and conditioned from birth to fit into a specific caste system. It's a thought - provoking look at a world without true freedom.

A good beginner - friendly science fiction book is 'Fahrenheit 451' by Ray Bradbury. It's not too long and it presents a very interesting and somewhat cautionary view of a future society where books are burned. It's easy to understand and has a lot of thought - provoking ideas. Also, 'The Time Machine' by H.G. Wells is a classic that is accessible for newbies. It takes the reader on a journey through time, which is a fundamental concept in science fiction.

Sure. 'Starship Troopers' by Robert A. Heinlein is a popular one. It follows the adventures of a young man in a future military. Another is 'I, Robot' by Isaac Asimov, which introduced the Three Laws of Robotics. And 'The Martian' by Andy Weir is also well - loved as it tells the story of an astronaut stranded on Mars and his struggle to survive.

Sure. 'The Hitchhiker's Guide to the Galaxy' by Douglas Adams is very popular. It's a humorous take on science fiction with absurd situations and characters, like the two - headed Zaphod Beeblebrox. It's filled with Adams' unique brand of wit and satire.

'Gateway' is also very popular. Its exploration of human nature in the face of the unknown, along with the unique setting of the alien space station, has attracted a large number of readers. People are drawn to the mystery of the ships and the potential for discovery, as well as the well - developed characters.

'Wool' by Hugh Howey was quite popular too. It's set in a post - apocalyptic silo, and the mystery and the characters' struggles within that confined space were really engaging for readers. The story gradually unfolds, revealing more about the world outside the silo as it progresses, which kept readers hooked.

I'm not sure which ones are the most popular exactly, but 'Snow Crash' by Neal Stephenson is often highly regarded. It's set in a future where the world has been transformed by a new form of technology and virtual reality, and it has a really unique and engaging plot.