We Rated 2,850 Books: What the Data Reveals

We review a lot of books. As of this writing, the Editors Reads library holds 2,850 rated titles spanning everything from Booker winners to airport thrillers, Stoic philosophy to celebrity memoir. That is a large enough sample to ask a question most “best books” lists never test: when you line up thousands of ratings, what actually separates the books that score highest from the rest?

So we pulled every rating in our catalogue and looked. Some of what we found confirms what serious readers suspect. Some of it is genuinely counterintuitive — including the finding that the genres people buy most for entertainment are the ones that score lowest. Here is the data.

The ratings curve is narrower than you’d think

The first surprise is how little spread there is. The average rating across all 2,850 books is 4.24 out of 5, with a median of 4.2 — and the distribution is remarkably tight:

In other words, 94% of every book we’ve reviewed lands between 4.0 and 4.5. Almost nothing scores below 3.5, and only 63 titles — just over 2% of the library — reach the 4.75-and-up tier. Part of that is selection: we review books worth reviewing, so the genuine duds rarely make the catalogue. But the compression also tells you something useful as a reader — once a book clears 4.0, the half-star differences are doing a lot of work, and a 4.5 is meaningfully rarer than the inflation of star ratings elsewhere online would suggest.

The genre hierarchy: nonfiction on top, blockbusters at the bottom

This is the headline finding, and it is not subtle. When we average ratings by genre (limiting to genres with at least 30 books so the numbers are stable), a clear hierarchy appears:

The pattern is striking: the genres readers buy most for pure entertainment — thriller, mystery, crime — sit dead last, more than half a star below the leaders. Meanwhile niche and reference-heavy nonfiction (cookbooks, biography, investing, history) tops the table.

Why? Two forces. First, a cookbook or a serious biography is usually bought by someone who already wants exactly that book, so the match between reader and book is tight and ratings run high. A blockbuster thriller, by contrast, is bought by millions of casual readers with wildly different tastes — more readers means more dissent, and dissent pulls the average down. Second, the commercial-fiction genres run on volume: they publish enormous numbers of competent-but-interchangeable titles, and competence rarely earns a 4.5. It is not that thrillers are bad — it’s that the genre’s median is ordinary in a way that the biography shelf’s median simply is not.

The classics premium is real

Older books rate higher, and the gradient is consistent across every era:

• Published before 1900: average 4.37
• 1900–1979: average 4.31
• 1980–2009: average 4.22
• 2010 and later: average 4.22

The simplest explanation is survivorship. The pre-1900 books still in print and still being read are the ones that earned their place over a century or more — Pride and Prejudice, Anna Karenina, The Brothers Karamazov. Nobody is still reviewing the forgettable novels of 1850. Contemporary publishing hasn’t had time to do that filtering yet, so its average is dragged down by books that will quietly disappear. For a reader, the practical takeaway is the oldest piece of advice there is: when in doubt, the canon is a safer bet — which is exactly what our best books of all time guide leans on.

The 4.9 club

Only ten books in the entire library reach 4.9 — and the list is a near-perfect illustration of everything above. It is almost entirely classics, literary fiction, and serious nonfiction:

• The Lord of the Rings and The Return of the King — J.R.R. Tolkien
• Pride and Prejudice — Jane Austen
• The Brothers Karamazov and Anna Karenina — Dostoevsky and Tolstoy
• Hamlet — Shakespeare; A Christmas Carol — Dickens; The Adventures of Sherlock Holmes — Conan Doyle
• The Complete Maus — Art Spiegelman
• Master of the Senate — Robert Caro

The single contemporary outlier worth noting elsewhere in the top tier is Andy Weir’s Project Hail Mary (4.8) — proof that new books can crack the ceiling, just rarely.

The bestseller premium — and the Patterson paradox

Bestsellers do rate higher, but only a little: 4.33 for bestsellers versus 4.20 for everything else, a gap of about 0.12. Popularity and quality overlap; they are not the same axis.

The most pointed illustration is at the author level. Among the most prolific writers in our catalogue, James Patterson — with 72 reviewed titles, more than anyone — carries the lowest average of the group at 3.80. At the other end, Brandon Sanderson (28 titles) averages 4.44 and Terry Pratchett (29 titles) 4.32. The pattern rhymes with the genre data: the high-volume commercial-fiction engine produces a lot of books and a lower average, while authors with a tighter, more distinctive body of work score higher per title.

What this means for your next read

Three practical conclusions fall out of the numbers:

1. Trust the half-star. In a library where 94% of books sit between 4.0 and 4.5, a 4.6 is a genuine signal, not noise.
2. For a near-guaranteed great read, lean older and lean nonfiction. The classics and the biography/history/cooking shelves carry the highest floors.
3. Treat blockbuster thrillers as hits-driven. The genre average is ordinary, but the best ones are exceptional — so use curated picks rather than the bestseller list, which is what our genre hubs and read-alike guides are built to do.

<a href="https://www.editorsreads.com/blog/what-2850-book-ratings-reveal/">
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       alt="What 2,850 Book Ratings Reveal — average rating by genre (Editors Reads)"
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<p>Source: <a href="https://www.editorsreads.com/blog/what-2850-book-ratings-reveal/">Editors Reads — What 2,850 Book Ratings Reveal</a></p>

A note on method

These figures come from the full set of 2,850 rated books in the Editors Reads library as of June 2026. Genre averages are limited to genres with at least 30 titles so a handful of books can’t skew the result; era and length bands use the same minimum. Ratings are our reviewers’ scores on a 1–5 scale. The library skews toward books people actually search for and buy, so this is a portrait of the reviewed-and-recommended world, not of everything ever published — but with that caveat, the patterns above are consistent and, in the case of the genre hierarchy, larger than any reasonable margin of error.

Want to put the data to work? Browse the highest-rated shelves — biography, history, and the classics — or see our editors’ best books of all time.