Almost certainly, this is something that publishers requested the removal of, under threat of requiring previews to be removed entirely.
Books that are out of copyright still have full search and display enabled.
So blame publishers, not Google.
This isn't like web search where web pages are publicly available and so Google can return search results across whatever it wants. For books, it relies on publisher cooperation to both supply book contents for indexing under license and give permissions for preview. If publishers say to turn off search, Google turns off search.
> The largest truly open library in human history
“Our mission is to organize the world’s information and make it universally accessible and useful”
Data that you can prove was generated by humans is now exceedingly valuable ...and most of that comes from the days before LLMs. The situation is a bit like how steel manufactured before the nuclear age is valuable.
If so, I could see someone doing this to exfiltrate books.
That's why publishers responded by excluding sections of books from search (it will list the pages but you can't view them), and individual Google accounts became limited in how many extra pages they were ever allowed to see of an individual book beyond the standard preview pages.
But then LibGen, Z-lib, and Anna's Archive became popular and built up their collections...
Then it would have been hella useful.
"But a few days ago they removed ALL search functions for any books with previews, which are disproportionately modern books." <emphasis mine>
"Hey, remove search?"
"OK, it was costing money anyways."
Check out library genesis, Anna's archive, and scihub for content.
Piracy isnt theft if buying isnt ownership.
William Tyndale was put to death for translating the Bible into English, which would have been an act to make information open and accessible.
That's not what he was put to death for. See https://www.catholic.com/magazine/print-edition/tyndales-her... and https://www.chinakasreflections.com/did-the-roman-catholic-c...
Here are two screenshots taken on Jan 20 and Jan 23 https://bsky.app/profile/adamnemecek.bsky.social/post/3mdbup...
They don't do full text search anymore esp for copyrighted books. I wonder if this is not a regression but an intent to give them a let up in the AI race.
Similarly, a year ago or so ChatGPT could summarize YouTube videos. Google put a stop to that so now only Gemini can summarize YouTube videos.
Why? Where different editions exist, the reader will want to know which one they're getting, but they're unlikely to systematically prefer newer editions.
But also, Google Books isn't aimed at "readers". You're not supposed to read books through it. It's aimed at searchers. Searchers are even less likely to prefer newer editions.
That seems wrong to me. Generally when a new edition of something is put out it's (at least nominally) because they've made improvements.
("At least nominally" because it may happen that a publisher puts out different editions regularly simply because by doing so they can get people to keep buying them -- e.g., if some university course uses edition E of book B then students may feel that they have to get that specific edition, and the university may feel that they have to ask for the latest edition rather than an earlier one so that students can reliably get hold of it, so if the publisher puts out a new edition every year that's just different for the sake of being different then that may net them a lot of sales. But I don't think it's true for most books with multiple editions that later ones aren't systematically better than earlier ones.)
Nobody is looking at it. I wouldn't be surprised if the preview search was switched off by accident.
For me Books is only useful (and it is very useful) for books out of copyright, 100+ years old. Sometimes they aren't at archive.org.
I hate Google, but I think it's a bit absurd to criticize them on this if somehow it's over AI. The only reason Google created Books may even have been AI, but they were hoping to have the books open to everyone, and the publishers and authors whose full text is being blocked are literally the people who stopped it from happening. Maybe they spoke up about AI, too. I find it even hard to even criticize that Google doesn't take care of Books - it has no purpose or profit potential for them anymore, it's obviously charity that they don't take it down completely.
Which tends to be kind of poop compared to true text search.