178,697 mentions analyzed
What Reddit keeps talking about. Ranked.
We read r/AcademicPsychology, r/AskHistorians, r/askphilosophy, r/AskProgramming and 34 more subs, then rank titles by tracked mention count. Upvotes and sentiment add context without changing the order, and each book page links to the source excerpts it displays.
Hot recently
All trending →Mention count in the latest six observed months, not the current wall-clock window.
#1 Gardens of the Moon
Steven Erikson
An empire quietly marks its own soldiers for death, and the gods are already choosing sides before the Bridgeburners find out.
#2 Project Hail Mary
Andy Weir
A high-school teacher wakes up alone on a spaceship with no memory of how he got there and one job left: save Earth.
#3 The Lord of the Rings
J. R. R. Tolkien
A gardener, a burglar's heir, and seven others walk a piece of jewelry to a volcano because destroying it is the only way to stop a war.
#4 The Blade Itself
Joe Abercrombie
Nine-Fingers the barbarian just wants to survive one more winter, but a torturer's investigation and a prince's war have other plans.
#5 All Systems Red (The Murderbot Diaries)
Martha Wells
A security robot hacks its own governor module, gains free will, and spends its days streaming soap operas instead of killing anyone.
#6 The Eye of the World
Robert Jordan
A farm boy's village burns in one night, and the Aes Sedai who saves him says the Dark One marked him before he could walk.
#7 The Way of Kings
Brandon Sanderson
A suicidal bridge slave assigned to the war camp's deadliest crew starts hearing storms answer when he gives orders.
#8 Red Rising
Pierce Brown
A miner's son fakes his way into the ruling class's brutal war-games academy to bring down the system that executed his wife.
All-time most-mentioned
By year →
#1 Hyperion
Dan Simmons
Seven pilgrims journey toward a monster that grants one wish and kills everyone else, and each tells the story of why they came.
#2 Dune
Frank Herbert
A duke's son survives his family's betrayal on a desert planet and becomes the prophet who leads its people to war.
#3 All Systems Red (The Murderbot Diaries)
Martha Wells
A security robot hacks its own governor module, gains free will, and spends its days streaming soap operas instead of killing anyone.
#4 Blindsight
Peter Watts
A crew of post-human specialists meets first contact and reports back that consciousness might be what's holding humanity back.
#5 Gardens of the Moon
Steven Erikson
An empire quietly marks its own soldiers for death, and the gods are already choosing sides before the Bridgeburners find out.
#6 The Way of Kings
Brandon Sanderson
A suicidal bridge slave assigned to the war camp's deadliest crew starts hearing storms answer when he gives orders.
#7 Children of Time
Adrian Tchaikovsky
A terraforming experiment goes wrong, a nanovirus lands on spiders instead of monkeys, and evolution builds a civilization nobody planned for.
#8 The Eye of the World
Robert Jordan
A farm boy's village burns in one night, and the Aes Sedai who saves him says the Dark One marked him before he could walk.
Browse by theme
All themes →Subreddits grouped by topic. Pick a lens to see what that group of communities actually reads.
Programming
32.5M membersSoftware engineering, languages, and careers — the books mentioned most often in our published sample across thirteen subreddits.
13subs · 96 books
Philosophy
19.9M membersAncient and modern philosophy as Reddit reads it — from the Stoics to Kant, Wittgenstein, and Camus, drawn from r/Stoicism, r/philosophy, and r/askphilosophy.
3subs · 52 books
Finance
25.9M membersInvesting and personal-finance books discussed in our Reddit sample — from Bogle and Graham to Housel and Collins, drawn from r/personalfinance, r/investing, and r/Bogleheads.
3subs · 47 books
History
19.8M membersFrequently mentioned history books — from Herodotus and Gibbon to Tuchman, Beevor, and Tooze, drawn from r/AskHistorians and r/history.
2subs · 47 books
Science
26.0M membersFrequently mentioned science books — from Sagan and Feynman to Dawkins, Hawking, and Mukherjee, drawn from r/askscience.
1sub · 19 books
Mental Health
1.2M membersFrequently mentioned psychology and mental-health books — from van der Kolk, Pete Walker, and Gabor Maté to Kahneman and Brené Brown, drawn from r/AskPsychology and r/CPTSD.
6subs · 65 books
Entrepreneurship
9.7M membersBusiness books discussed by founders — from Gerber and Ries to Thiel, Horowitz, and Knight, drawn from r/Entrepreneur, r/startups, and r/smallbusiness.
3subs · 35 books
Self-Improvement
8.9M membersThe habit and discipline books Reddit returns to — Carnegie, Covey, Clear, Newport, Frankl — drawn from r/selfimprovement, r/getdisciplined, and r/productivity.
3subs · 40 books
Fiction
8.3M membersNovels frequently mentioned in our r/Fantasy sample — from Sanderson and Le Guin to Steinbeck and Backman. More fiction communities will join this theme as their data is published.
4subs · 145 books
Browse by subreddit
All subreddits →Every subreddit has its own taste — the senior-IC subs read different books than the beginner subs, and the career-focused subs pick over interview prep more than craft.
Best books by topic →
Programming, personal finance, philosophy, stoicism and investing books — each list ordered by tracked mention count.
Articles →
Roundups, read-alike maps, and guides built from the same comment data — every claim links back to a sourced book page.
How is this ranked?
All-time, topic, subreddit and year lists are ordered by mention count in their stated scope. Trending lists count the latest six observed months. Upvotes select useful source excerpts and sentiment describes those excerpts; neither changes rank.
Methodology →