Compiled in one book, the essential collection of speculative science fiction books:

Looking Backward 2000-1887, Edward Bellamy

Flatland, a romance of many dimensions, Edwin Abbott Abbott

Utopia, Thomas More

Gulliver of Mars, Edwin L. Arnold

The Emerald City of Oz, L. Frank Baum

The Time Machine, H. G. (Herbert George) Wells

Anthem, by Ayn Rand

A Voyage to Arcturus, David Lindsay

20000 Leagues Under the Seas, Jules Verne

All Around the Moon, Jules Verne

The Brick Moon, Edward Everett Hale

The Land That Time Forgot, Edgar Rice Burroughs

The Lost Continent, Edgar Rice Burroughs

The Lost Continent, The Story of Atlantis, C. J. Hyne

The Strange Case of Dr. Jekyll and Mr. Hyde, Robert Louis Stevenson

Tarzan of the Apes, Edgar Rice Burroughs