Some time prices of books are quite high. Most local libraries also do not have enough funds to buy every book. Google books is also a good source, but it either only show the full of a copy of the old book or only shows selected pages of the latest books.
You are also not able to download a book from Google books.
Does anyone know a free source for the latest books?
It is difficult to get a free copy of every book. However, nowadays, publishers provide a copy of the book in ebook form. This makes things easy for the book to get quickly available on the internet. Some dedicated website is scanning the internet for this very purpose. They add a copy of the book to their database. In some cases, they have thousands of members who upload books.
Libgen is one of the leading sources you can try
http://libgen.io/
Piratebay is another one which sometimes has the latest book but not as good as Libgen.
More free book sources are here under this thread.
Unless you really after a specific book and want to read it in full, I would suggest reading synopsis or summary fo the book. It would save you time and money.
Blinklist is one of the great sources for the summaries of the books https://www.blinkist.com/.
Beside that https://www.pdfdrive.com/ is a good source for free PDF books.
I think PDF Get is also an amazing site for free pdf or ebooks.
https://pdfget.com/