Next, I should suggest where they might find the book legally. Options include checking online libraries like Google Books or Amazon Kindle, searching for free previews, or looking for official free resources from the publisher or website. Academic institutions sometimes provide access through their libraries, so if they're a student, that's a good path. Also, recommending open-access textbooks or repositories like Project Gutenberg or OpenStax, though I'm not sure if those have the exact book. Maybe they can find similar books.