r/scifibooks is a subreddit with 13k members. The community frequently discusses book, scifi, help, sci fi, and books, and the most common flair used is book discussion. , recommendation request., hard sci-fi, space opera, and classic sci/fi..
The best place to talk about Sci-Fi and hang out with fellow fans of the genre. All are welcome to our community but there is no place for hate.
Popular Topics in r/scifibooks
#1
Book
53 posts
#2
Scifi
28 posts
#3
Help
27 posts
#4
Sci Fi
14 posts
#5
Books
9 posts
#6
Novel
9 posts
#7
Recommendation
9 posts
#8
Series
5 posts
#9
Futuristic
5 posts
#10
Horror
5 posts
Flair Used in r/scifibooks
#1
Book Discussion.
: "Story of my life…"
13 posts
#2
Recommendation Request.
: "Finally finish. Any recommendations on other books like Dune but with more action?"
10 posts
#3
Hard Sci-Fi
: "a deepness in the sky by Vernon Vinge"
3 posts
#4
Space Opera
: "NYTimes Space Opera recommendations"
2 posts
#5
Classic sci/fi.
: "‘Twas Mortals Who Sacrificed—Artwork by Carvalho"
2 posts
#6
Military Sci-Fi
: "What’s your favorite spaceship weapon and why?"
1 post
#7
Sci-Fi Horror
: "The Prophet Beneath the Waves"
1 post
#8
First Contact
: "The story behind my why"
1 post
Member Growth in r/scifibooks
Yearly
+10k members(335.6%)
Similar Subreddits to r/scifibooks
r/booksuggestions
1.4M members
7.8% / yr
r/Fantasy
4.0M members
3.0% / yr
r/fantasyromance
305k members
27.8% / yr
r/KindleUnlimited
44k members
42.9% / yr
r/litrpg
159k members
38.9% / yr
r/sciencefiction
320k members
14.0% / yr
r/ScienceFictionBooks
33k members
76.6% / yr
r/ScienceFictionRomance
24k members
46.8% / yr
r/scifi
4.5M members
1.8% / yr
r/scifi_bookclub
21k members
25.2% / yr
About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/scifibooks, including current member size, discussion patterns, product reviews, and related communities to explore.
This data is synced periodically so insights stay current and useful for ongoing research.
Last updated: October 1, 2026