1,108,848 mentions analyzed
What Reddit keeps talking about. Ranked.
We read r/AcademicPsychology, r/AskHistorians, r/askphilosophy, r/AskProgramming and 36 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 Project Hail Mary
Andy Weir
A dying astronaut wakes up alone on a spaceship with amnesia, two corpses for company, and Earth's one shot at survival riding on him.
#2 Gardens of the Moon
Steven Erikson
A continent-spanning empire's mage-soldiers besiege a city that might already be doomed by gods playing a board game with human pieces.
#3 All Systems Red (The Murderbot Diaries)
Martha Wells
A security android with no interest in gender, romance, or heroics just wants to watch its shows, and ends up saving its clients from a conspiracy anyway.
#4 The Lord of the Rings
J. R. R. Tolkien
A gardener and three friends carry a cursed ring across a continent at war, because the only way to destroy it is to walk it into the volcano that forged it.
#5 The Blade Itself
Joe Abercrombie
A crippled torturer, a vain swordsman, and a berserker haunted by his own alter ego get pulled into a war none of them understand yet.
#6 Red Rising
Pierce Brown
A low-caste miner surgically altered to pass as the ruling elite infiltrates the academy that killed his wife, planning to burn the system down from inside.
#7 Harry Potter and the Philosopher's Stone
J. K. Rowling
An eleven-year-old orphan gets a letter, a train platform that shouldn't exist, and a scar that makes him famous for something he can't remember.
#8 Mistborn: The Final Empire
Brandon Sanderson
A street thief who can swallow metal and burn it for power gets recruited into a heist crew whose actual target is the immortal emperor who's ruled for a thousand years.
All-time most-mentioned
By year →
#1 Gardens of the Moon
Steven Erikson
A continent-spanning empire's mage-soldiers besiege a city that might already be doomed by gods playing a board game with human pieces.
#2 Mistborn: The Final Empire
Brandon Sanderson
A street thief who can swallow metal and burn it for power gets recruited into a heist crew whose actual target is the immortal emperor who's ruled for a thousand years.
#3 The Way of Kings
Brandon Sanderson
A bridgeman slave carries spears through a warzone he's not allowed to fight in, until he decides to become the soldier no one will follow.
#4 Harry Potter and the Philosopher's Stone
J. K. Rowling
An eleven-year-old orphan gets a letter, a train platform that shouldn't exist, and a scar that makes him famous for something he can't remember.
#5 The Eye of the World
Robert Jordan
Trollocs burn a village hunting for one of three farm boys, so an Aes Sedai spirits all three out before anyone learns which.
#6 The Lord of the Rings
J. R. R. Tolkien
A gardener and three friends carry a cursed ring across a continent at war, because the only way to destroy it is to walk it into the volcano that forged it.
#7 The Blade Itself
Joe Abercrombie
A crippled torturer, a vain swordsman, and a berserker haunted by his own alter ego get pulled into a war none of them understand yet.
#8 All Systems Red (The Murderbot Diaries)
Martha Wells
A security android with no interest in gender, romance, or heroics just wants to watch its shows, and ends up saving its clients from a conspiracy anyway.
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 · 21 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.
6subs · 205 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 →