r/scifibooks is a subreddit with 10k members. The community frequently discusses book, scifi, help, sci fi, and books, and the most common flair used is recommendation request., book discussion. , classic sci/fi., hard sci-fi, and sci-fi horror.
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
Recommendation Request.
: "Books with huge, unique cities."
22 posts
#2
Book Discussion.
: "Saw this yesterday and bought it for 75.00 🫣"
14 posts
#3
Classic sci/fi.
: "Which fictional universe has the best spaceships and why?"
5 posts
#4
Hard Sci-Fi
: "My current sci-fi read : blindsight"
4 posts
#5
Sci-Fi Horror
: "[Complete] [50k] [Sci fi, horror, romance] A God in pieces"
3 posts
#6
Military Sci-Fi
: "Name of a series of books I read in 2005/2006?"
1 post
Member Growth in r/scifibooks
Yearly
+7k members(242.4%)
Similar Subreddits to r/scifibooks
r/booksuggestions
1.4M members
7.5% / yr
r/Fantasy
3.9M members
2.9% / yr
r/fantasyromance
295k members
33.2% / yr
r/KindleUnlimited
42k members
44.6% / yr
r/litrpg
151k members
38.2% / yr
r/sciencefiction
313k members
14.0% / yr
r/ScienceFictionBooks
30k members
76.8% / yr
r/ScienceFictionRomance
23k members
54.8% / yr
r/scifi
4.5M members
1.5% / yr
r/scifi_bookclub
20k members
23.9% / 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: August 5, 2026