I've spent years hunting for quality book extracts online, and I’ve found a few gems that never disappoint. Project Gutenberg is my go-to for classic literature—it’s a treasure trove of public domain books with full, reliable texts. For modern works, Google Books often provides substantial previews, though the depth varies by publisher. Open Library is another favorite; it’s like a digital lending library with scans of actual pages, so you know it’s legit. If you’re into academic texts, JSTOR’s open access section offers chapter snippets that are meticulously sourced. These sites are my personal holy grail for trustworthy extracts.
I also rely on publisher websites like Penguin Random House or HarperCollins, which sometimes post free chapters or excerpts to promote new releases. They’re straight from the source, so you can’t get more reliable than that.