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BooksReddit

Index

Browse by subreddit

Every community we currently read for book mentions. The differentiated value is in specialty subs where readers recommend books outside the usual canon — programming, music, photography, history. Today we cover 38 subs; more coming as the pipeline expands.

r/askscience

26.0M members

r/askscience is a moderated Q&A forum where verified scientists and informed enthusiasts answer questions spanning biology, physics, chemistry, and earth sciences.

19 books indexed

r/personalfinance

21.7M members

A broad personal-finance sub for people at every stage — budgeting, debt payoff, first jobs, retirement basics — with 17 million members making it one of Reddit's largest money communities.

8 books indexed

r/philosophy

18.5M members

A general philosophy subreddit for discussion of philosophical texts, arguments, and ideas across all traditions and periods.

34 books indexed

r/history

17.6M members

A general-audience history forum where enthusiasts, students, and autodidacts share reading recommendations across all periods and regions.

30 books indexed

r/programming

6.9M members

A general-purpose programming subreddit for news, articles, and discussion across all languages and disciplines, drawing a broad audience of working developers.

38 books indexed

r/Entrepreneur

5.2M members

A general-purpose entrepreneurship forum where founders, solopreneurs, and early-stage operators share advice, war stories, and book recommendations.

27 books indexed

r/learnprogramming

4.4M members

A beginner-to-intermediate programming sub where people post questions about learning to code, choosing languages, and building foundational skills.

50 books indexed

r/productivity

4.2M members

A subreddit for people seeking practical systems to get more done, manage time, and reduce friction in their work and personal lives.

27 books indexed

r/compsci

4.0M members

r/compsci is a subreddit for computer science theory, research, and foundational topics, drawing students, academics, and engineers interested in the discipline's intellectual core rather than day-to-day coding practice.

32 books indexed

r/Fantasy

3.9M members

r/Fantasy is Reddit's largest fantasy fiction community, where readers recommend and debate epic, secondary-world, and grimdark fantasy series.

110 books indexed

r/suggestmeabook

3.4M members

A general recommendation subreddit where readers describe what they're in the mood for and other users suggest specific titles across every genre.

122 books indexed

r/investing

3.4M members

A general-purpose investing subreddit for retail investors discussing stocks, funds, and personal finance strategy, spanning everything from index-fund basics to individual stock analysis.

39 books indexed

r/webdev

3.3M members

A subreddit for web developers of all experience levels to discuss tools, workflows, and best practices in front-end, back-end, and full-stack development.

24 books indexed

r/MachineLearning

3.0M members

A research-oriented subreddit for ML practitioners and academics discussing papers, methods, and tools in machine learning.

16 books indexed

r/datascience

2.7M members

A subreddit for working data scientists and analysts to discuss tools, workflows, career questions, and the practical realities of the field.

17 books indexed

r/selfimprovement

2.6M members

A general self-improvement subreddit where people share struggles with habits, confidence, and mental health and ask for book recommendations to address them.

30 books indexed

r/smallbusiness

2.5M members

A subreddit for owners and operators of small businesses seeking practical advice on running, growing, and surviving their companies.

14 books indexed

r/cscareerquestions

2.4M members

r/cscareerquestions is a subreddit for software engineers and CS students discussing job hunting, interviews, salaries, and career progression in tech.

48 books indexed

r/AskHistorians

2.2M members

A strictly moderated history Q&A subreddit where answers must come from users with demonstrable expertise, producing one of the most source-cited communities on Reddit.

44 books indexed

r/getdisciplined

2.2M members

A subreddit for people building self-discipline and consistent habits, populated largely by younger readers working on motivation, focus, and daily routines.

31 books indexed

r/startups

2.1M members

A subreddit for founders, early employees, and investors discussing the mechanics of building and scaling new companies.

9 books indexed

r/gamedev

2.0M members

r/gamedev is a community for professional and hobbyist game developers discussing engines, design, code architecture, and the business of making games.

13 books indexed

r/Python

1.5M members

r/Python is the main community for Python developers and enthusiasts, covering news, projects, tutorials, and language discussion across all skill levels.

18 books indexed

r/sysadmin

1.3M members

A subreddit for professional system administrators to discuss operations, infrastructure, tooling, and the daily realities of keeping systems running.

16 books indexed

r/Bogleheads

845k members

A community built around John Bogle's philosophy of low-cost index-fund investing, populated largely by buy-and-hold investors focused on long-term wealth accumulation through passive strategies.

33 books indexed

r/Stoicism

814k members

A subreddit for practitioners and students of Stoic philosophy, ranging from beginners seeking entry points to long-term readers working through the primary texts.

25 books indexed

r/horrorlit

608k members

r/horrorlit is Reddit's main subreddit for discussing and recommending horror literature - novels, novellas, and short fiction, as distinct from horror film.

53 books indexed

r/askphilosophy

592k members

A Q&A subreddit moderated by academic philosophers and graduate students, where users ask direct questions about philosophical texts, arguments, and traditions.

40 books indexed

r/devops

490k members

A subreddit for practitioners and engineers working in DevOps, focused on culture, tooling, automation, and the organizational side of software delivery.

39 books indexed

r/CPTSD

453k members

A support and discussion community for people living with Complex PTSD, focused on healing from prolonged trauma, emotional neglect, and abusive relationships.

51 books indexed

r/ExperiencedDevs

392k members

A subreddit for software engineers with professional experience to discuss career growth, architecture, engineering culture, and the realities of working in large codebases.

51 books indexed

r/printSF

360k members

r/printSF is a subreddit for discussing and recommending science fiction books, explicitly excluding film and TV adaptations.

110 books indexed

r/askpsychology

265k members

A question-and-answer sub where people ask practicing psychologists and psychology students about mental health, behaviour, and research.

15 books indexed

r/AskProgramming

222k members

A Q&A subreddit where programmers of all levels post specific technical questions and ask for book recommendations to solve concrete problems.

29 books indexed

r/AcademicPsychology

183k members

A subreddit for academic psychologists, researchers, and graduate students to discuss the science of psychology, methodology, and professional development.

10 books indexed

r/therapists

162k members

A professional community for licensed therapists and trainees to discuss clinical practice, ethics, and career challenges.

41 books indexed

r/attachment_theory

88k members

A subreddit for people studying and applying attachment theory to their own relationships and psychological development, drawing heavily from both clinical literature and self-help.

26 books indexed

r/InternalFamilySystems

82k members

A subreddit for people practicing or learning Internal Family Systems therapy, a parts-based model developed by Richard Schwartz.

23 books indexed