Not all the books have samples.
Google it so you'll find it there
Google Scholar is more advanced than Google.
http://www.w3schools.com/PHP/ use google and google books
on google books
You can find Google books to print for free at the official Google Books website. All that is required is that you have the proper reader in order to view the books after you have downloaded them usually in PDF format.
Google Books does not sell books online or otherwise. It is merely an online digital database of books. It could be available as excerpts or as complete volumes.
Google books?
Google Libros is the Spanish version of Google Books. Google Libros provides a variety of Spanish language downloadable books either for sale or for borrowing.
Google Books has a lot of free books that you can read online.
Yes, Buy them in the Play Store and download them with the Google Play books app.
Indeed, Google has a feature called Google Books. Google has been scanning in old, out-of-print books for years with the goal of having every book ever written in the world in their library. Many books, of course, are current and may be purchased through Google. If not, Google links you to places where you can buy them. You can frequently get them digitally; and, if not, then in hard copy.Books not under copyright are free at no cost and can be easily downloaded in multiple different formats.This is a fabulous product and service that Google provides.
Google Books provides the service of letting users download full sized Ebooks to their handheld device. Google Books offers a rental option to users also, instead of having to purchase the Ebook.