r/books

So many books, so little time

Founded January 2008 · Public — anyone can post

Updated Oct 21

This is a moderated subreddit. It is our intent and purpose to foster and encourage in-depth discussion about all things related to books, authors, genres, or publishing in a safe, supportive environment. If you're looking for help with a personal book recommendation, consult our Weekly Recommendation Thread, Suggested Reading page, or ask in r/suggestmeabook.

Members

27,331,396

27.3M

Online now

—

not captured in the last snapshot

Posts per day

7.7

from the last 100 posts, spanning 12.9 days

Comments per post

—

no sample yet

Growth · 7d

+0.0%

+4.8K members · ≈7d

Growth · 30d

+0.1%

+27K members · ≈30d

Promo tolerance

—

not assessed yet

Last post

Oct 26

sampled Oct 26

Distinct posters

73%

of the last 100 posts

Tracking since Sep 11 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.

Member growth

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r/books — frequently asked

How many members does r/books have?

r/books has 27,331,396 members as of our most recent crawl on Oct 21. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.

Is r/books growing?

Over the last ≈30 days r/books changed by +0.1% — a gain of 27K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".

How active is r/books?

Around 7.7 posts per day, measured from the newest 100 posts on Reddit, which span 12.9 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.

When was r/books created?

r/books was founded in January 2008 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.

Who posts in r/books?

Of the last 100 posts we sampled, 73% came from distinct accounts; the newest was published Oct 26. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.

Can I promote my product in r/books?

We don't have a promo-tolerance read for r/books yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.

How do I monitor r/books for mentions?

Hit Watch on this page. Prowlo starts crawling r/books into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.

Can my AI agent read r/books's stats?

Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/books's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.

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r/SaaS · 4m ago

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Match · 86%Buying signal

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r/books Subreddit Stats — 27.3M members, 7.7 posts/day