Can you recommend some best public domain science fiction books?

One of the best is 'Frankenstein' by Mary Shelley. It's a classic that explores themes like creation, ethics, and the nature of humanity. The story of Victor Frankenstein creating a monster has influenced countless works of science fiction since.

Sure. 'The War of the Worlds' by H.G. Wells. It's about an alien invasion and how humanity reacts. The way Wells describes the Martians and their advanced technology is really cool. It's a very exciting read.

Sure. 'Frankenstein' is a great one. It was way ahead of its time in terms of exploring the idea of creating life artificially. Then there's 'The Invisible Man' by H.G. Wells. It's a fascinating look at what it would be like to be invisible and the moral and practical implications. 'The First Men in the Moon' by Wells is also a good read, with its imaginative journey to the moon.

Sure. 'Don Quixote' by Miguel de Cervantes is an excellent choice. It's a satirical take on the chivalric romances of the time. The story of the deluded knight Don Quixote and his loyal squire Sancho Panza is both humorous and thought - provoking, while also giving insights into 17th - century Spanish society.

Sure. 'Frankenstein' by Mary Shelley is a classic public domain science fiction novel. It explores themes of creation and the consequences of playing God.

Some great public domain science fiction works include 'The War of the Worlds' by H.G. Wells. It's a classic tale of alien invasion that has influenced many subsequent works in the genre. 'Twenty Thousand Leagues Under the Sea' by Jules Verne is also excellent. It gives a vivid description of the underwater world and the adventures therein. And then there's 'Metropolis' which has inspired countless movies and other works with its vision of a future city.

One of the best is 'Frankenstein' by Mary Shelley. It's a classic that delves into themes of creation, morality, and the human condition. The story of Victor Frankenstein creating a monster has had a profound impact on science fiction ever since. It was way ahead of its time in exploring the consequences of scientific overreach.

One well - known public domain science fiction book is 'Frankenstein' by Mary Shelley. It's a classic that explores themes like creation, morality, and the relationship between man and his creation. Another is 'The Time Machine' by H.G. Wells. It takes readers on a journey through time and makes them think about the future of humanity. 'Twenty Thousand Leagues Under the Sea' by Jules Verne is also in the public domain. It's an exciting adventure story set beneath the ocean's surface.

Try online libraries like Open Library (openlibrary.org). It has a vast range of books, including public domain science fiction. Also, some universities with extensive digital archives may offer access to public domain science fiction works. You could check if your local university library has an online catalogue you can search through. Additionally, there are websites that focus specifically on collecting and categorizing public domain literature, where you might stumble upon some great science fiction finds.

One of the best is 'The Three Musketeers' by Alexandre Dumas. It's a classic that takes readers into the world of 17th - century France, filled with adventure, sword fights, and political intrigue. The characters are vividly drawn, and the story has been adapted numerous times, showing its timeless appeal.