Since time immemorial, mankind has been looking up at the stars and dreaming, but it was only centuries ago that we started turning those dreams into fiction. And what remarkable dreams they are—dreams of distant worlds, unearthly creatures, parallel universes, artificial intelligence, and so much more. Today, we call those dreams science fiction.
Science fiction’s earliest inklings began in the mid-1600s, when Johannes Kepler and Francis Godwin wrote pioneering stories about voyages to the moon. Some scholars argue that science fiction as we now understand it was truly born in 1818, when Mary Shelley published Frankenstein, the first novel of its kind whose events are explained by science, not mysticism or miracles. Now, two centuries later, sci-fi is a sprawling and lucrative multimedia genre with countless subgenres, such as dystopian fiction, postapocalyptic fiction, and climate fiction, to name just a few. It’s also remarkably porous, allowing for some overlap with genres like fantasy and horror.
Sci-fi brings out the best in our imaginations and evokes a sense of wonder, but it also inspires a spirit of questioning. Through the enduring themes of sci-fi, we can examine the zeitgeist’s cultural context and ethical questions. Our favorite works in the genre make good on this promise, meditating on everything from identity to oppression to morality. As the Nobel Prize-winning novelist Doris Lessing said, “Science fiction is some of the best social fiction of our time.”
Over two years ago, we published a version of this list featuring 50 books. But why stop at 50? Now, as part of our latest Summer Fiction Week, we’ve cast a wider net and expanded the list to 75 titles. Choosing the 75 best science fiction books of all time wasn’t easy, so to get the job done, we had to establish some guardrails. Though we assessed single installments as representatives of their series, we limited the list to one book per author. We also emphasized books that brought something new and innovative to the genre—to borrow a great sci-fi turn of phrase, books that “boldly go where no one has gone before.”
Now, in ranked order, here are the best science fiction books of all time.
#1
#2
#3
1950 • 1,138 Readers • 182 pages • 4
#4
#5
1979 • 1,202 Readers • 287 pages • 4.4
#6
#4 of 18 in Hainish Cycle
1969 • 1,660 Readers • 267 pages • 4.1
#7
2000 • 2,234 Readers • 282 pages • 3.8
#8
2019 • 1,183 Readers • 350 pages • 4.3
#9
2014 • 2,283 Readers • 333 pages • 4.1
#10
1968 • 2,183 Readers • 223 pages • 3.9
#11
#1 of 4 in Remembrance of Earth's Past
2006 • 3,874 Readers • 400 pages • 3.9
#12
1949 • 7,357 Readers • 328 pages • 4.2
#13
2018 • 271 Readers • 144 pages • 3.6
#14
1900 • 3,814 Readers • 332 pages • 3.9
#15
2010 • 306 Readers • 257 pages • 3.2
#16
#17
1953 • 886 Readers • 212 pages • 4
#18
1972 • 696 Readers • 226 pages • 4
#19
1959 • 681 Readers • 322 pages • 4
#20
#1 in Canopus in Argos: Archives Series,
1979 • 17 Readers • 364 pages • 2.2
#21
#22
#23
#24
#25
1992 • 109 Readers • 416 pages • 3.9
#26
2017 • 163 Readers • 288 pages • 3.6
#27
#1-3 of 3 in 1Q84
2009 • 1,189 Readers • 1,184 pages • 3.7
#28
#29
#30
2023 • 243 Readers • 380 pages • 3.6
#31
1978 • 1,965 Readers • 1,553 pages • 4.1
#32
#33
#34
2009 • 710 Readers • 336 pages • 4
#35
2015 • 187 Readers • 432 pages • 3.3
#36
1992 • 246 Readers • 3.3
#37
1979 • 60 Readers • 254 pages • 3.3
#38
#1 of 4 in Wayfarers
2014 • 1,834 Readers • 423 pages • 4.1
#39
2000 • 196 Readers • 3.3
#40
2021 • 4,897 Readers • 496 pages • 4.5
#41
#1 of 2 in St. Leibowitz
1959 • 802 Readers • 334 pages • 3.9
#42
#1 of 6 in The Hitchhiker's Guide to the Galaxy
1979 • 4,584 Readers • 215 pages • 4.2
#43
#44
1955 • 480 Readers • 278 pages • 3.9
#45
#46
2003 • 518 Readers • 464 pages • 4.1
#47
2017 • 335 Readers • 11h 54m • 4
#48
52 Readers • 4.5
#49
#50
#51
1963 • 740 Readers • 288 pages • 3.8
#52
1962 • 1,816 Readers • 72 pages • 3.9
#53
1961 • 893 Readers • 222 pages • 3.8
#54
#1 of 3 in Children of Time
2015 • 2,097 Readers • 600 pages • 4.3
#55
#56
2020 • 53 Readers • 3.4
#57
2019 • 2,940 Readers • 223 pages • 3.9
#58
1967 • 316 Readers • 303 pages • 3.8
#59
#2 of 5 in The Book of the New Sun
1981 • 142 Readers • 303 pages • 4
#60
#62
#63
1949 • 17 Readers • 205 pages • 3
#64
#65
1963 • 195 Readers • 236 pages • 4.1
#66
2000 • 222 Readers • 304 pages • 3.6
#67
1985 • 742 Readers • 453 pages • 4.1
#68
1937 • 167 Readers • 272 pages • 3.9
#69
1992 • 1,907 Readers • 448 pages • 4
#70
2000 • 82 Readers • 356 pages • 3.9
#71
2020 • 40 Readers • 4.2
#72
2024 • 195 Readers • 336 pages • 4.2
#73
2012 • 878 Readers • 318 pages • 3.8
#74
#1 of 4 in Lady Astronaut Universe
2018 • 669 Readers • 384 pages • 4
#75
2021 • 424 Readers • 256 pages • 3.7