Book statistics that actually say something
We analysed every recommendation inside BookTwin's engine — 3,465 of them — and paired the findings with verified data on AI-written books, how people really read, and what the industry actually earns.
The six findings worth quoting
- More than half of new Amazon e-books now contain AI-written text — up from effectively zero in 2022.
- The “nobody reads anymore” stat is wrong. 75% of US adults read at least part of a book last year.
- Print refuses to die. 64% of US adults read a print book last year — more than e-books and audiobooks combined.
- Book bans aren't grassroots. 92% of 2025 library challenges came from pressure groups and officials — under 3% from individual parents.
- There is a length sweet spot: 360 pages. 56% of recommended books fall between 300 and 499 pages.
- Recommendation engines have a long tail, not a canon. 62% of the 1,467 books in our dataset were recommended exactly once.
01 — The AI flood
Most new e-books are no longer entirely human
Economists Imke Reimers and Joel Waldfogel sampled over 333,000 releases representative of roughly 10 million e-books published on Amazon between 2020 and 2025. Books with detected AI text went from almost none before ChatGPT to a majority of new releases in 2025 — and the rate of new e-book releases nearly tripled along the way.
Share of new Amazon e-book releases containing detected AI text
Source: Reimers & Waldfogel, NBER Working Paper 34777 (2026). 2025 shown as “crossed the halfway mark”.
Why it matters for readers: the researchers found AI-containing books score lower on quality measures, and their rising share drags the average down. More books are published than ever — but finding a good one is getting harder, not easier.
02 — How people actually read
Reading isn't dying. It's just measured badly.
You've probably seen the headline that only ~38% of Americans read a book last year. That figure counts a narrower definition. Pew's October 2025 survey of 8,046 US adults found 75% read all or part of at least one book in the previous 12 months.
Format used in the past 12 months
Source: Pew Research Center, October 2025 (n=8,046). Adds to more than 100% — many people use several formats.
03 — The censorship surge
Book bans aren't coming from parents
The American Library Association tracked 4,235 unique titles challenged in 2025 — the second-highest count ever recorded, just short of 2023's 4,240. The detail that gets lost in coverage is who is actually filing the challenges.
Who actually initiates a book challenge
Share of 2025 challenges by originator.
Source: ALA Office for Intellectual Freedom, 2025. Pressure-group share rose from 72% in 2024.
4 of the 11 most-challenged books are ones we actively recommend
We cross-referenced ALA's most-challenged list of 2025 against our own engine. These titles have been recommended to readers 15 times — chosen purely because they matched somebody's taste.
- A Court of Thorns and RosesSarah J. Maas8×
- A Clockwork OrangeAnthony Burgess4×
- The Perks of Being a WallflowerStephen Chbosky2×
- Looking for AlaskaJohn Green1×
04 — Inside a recommendation engine
What 3,465 book recommendations reveal
This part is ours. BookTwin matches readers to books by mood, pacing and theme rather than genre alone. We analysed every recommendation the engine has produced across 385 books — 1,467 distinct titles by 1,102 authors.
The most-recommended books
Titles the engine reaches for most often across every taste profile.
Source: BookTwin recommendation data, August 2026.
The most-recommended authors
Counted across an author's entire catalogue.
How long is a book people actually get recommended?
Median 360 pages. 56% land between 300 and 499 pages.
Page counts via Open Library, clamped to 50–1,200 pages to exclude bad edition data.
Recommendations skew hard to the 2010s
By original publication decade. The 2020s look small because many recent titles have thinner metadata, not because they're unpopular.
What readers are actually chasing
The themes attached most often to recommended books. Sized by frequency.
05 — The money
A $33.4 billion industry that grows slowly
The contrast is the story: AI has multiplied the number of books in existence several times over, while the money readers actually spend grew about 2.5%. Attention, not supply, is the scarce resource.
Methodology & sources
BookTwin figures are computed directly from our own recommendation dataset at build time, covering 385 seed books and 3,465 recommendations. Book metadata (page counts, publication years) comes from Open Library; implausible values are excluded. External figures are unmodified and attributed below.
- Reimers & Waldfogel, “AI and the Quantity and Quality of Creative Products” (NBER WP 34777) — AI share of e-book releases.
- Pew Research Center (October 2025 survey, n=8,046) — reading rates, formats, book clubs.
- American Library Association, Office for Intellectual Freedom (2025 data) — book challenges, bans and most-challenged titles.
- Association of American Publishers, StatShot Annual 2025 — industry revenue.
- Publishers Weekly / Circana BookScan — print unit sales and BookTok impact.
Cite this page
These statistics are free to use with attribution and a link.
BookTwin (2026). “Book Statistics 2026: Reading, Publishing & AI Data.” https://booktwin.co/book-statistics
Want a book worth your time?
With more books published than ever, finding a good one is the hard part. Tell BookTwin what you loved and get matched by mood, pacing and emotional payoff.
Find my next book