Probably 'Dune'. It has been extremely popular for decades, with its epic story of power struggles in a desert planet. Also, '1984' is widely read. Its themes of a totalitarian future are always relevant. And 'The Hitchhiker's Guide to the Galaxy' has a huge fan base due to its humor and creative take on the universe.
In the list of 2000 science fiction books, 'Hyperion' is quite popular. It weaves together multiple storylines in a very engaging way, set in a far - future universe. 'Snow Crash' is also popular, with its unique blend of cyberpunk elements and a fast - paced plot. And 'Neuromancer' is a classic that remains popular among those interested in the origins of cyberpunk and the exploration of virtual reality - like concepts in science fiction.
Among the list of 2000 science fiction books, 'Foundation' is one of the most popular. It has a grand scale of storytelling about the fall and possible rebirth of an entire galactic civilization. 'Ender's Game' is also very popular, especially among young adult readers, as it has an engaging story of a child prodigy in a space - based military scenario. Additionally, 'Brave New World' is popular for its exploration of a future society's social engineering.
'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.
I'm not entirely sure which ones were the most popular, but 'Doomsday Book' was widely talked about. It had an interesting premise of time - traveling historians.
Another popular one could be 'The Uplift War'. It was part of a well - known series and had a lot of fans who were into the idea of the uplift concept, where lower species are 'uplifted' to sentience by higher ones. It had exciting battles and interesting alien species interactions.
Another popular one might be 'The Uplift War' by David Brin. It's part of a series and in 1989 it was attracting a lot of attention for its unique take on the evolution of intelligent species and the politics between them.
I'm not sure which were the most popular exactly, but 'The Graveyard Book' was widely loved. It won the Newbery Medal. Its blend of fantasy and science fiction elements, along with its engaging characters, made it a hit.
A very popular one is 'Brave New World' by Aldous Huxley. This book presents 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 the potential consequences of scientific and technological advancements on human nature and society. There are many interesting discussions around topics like happiness, freedom, and individuality in the context of this fictional world.
I think 'The Collapsing Empire' was quite popular. It got a lot of attention for its unique story and engaging characters.
Probably 'Snow Crash' is also popular. It was quite ahead of its time with its ideas about virtual worlds and the future of society. It combines cyberpunk elements with a really engaging story, which made it a hit among science fiction readers in 1999 and still remains popular today. The unique language and the fast - paced plot make it stand out in the list of 1999 science fiction books.
I'd say 'Foundation's Edge' is quite popular. Asimov was already a big name in science fiction, and this addition to the Foundation series was eagerly awaited. It expanded on the already rich universe he had created, with more political intrigue and scientific ideas.