Google Books is a place on Google where you could find books and reviews. For example, if you look up The Pigman, it opens up the whole book. It also will show other versions or related books.
If you look up Romeo and Juliet, it will open the play. And so it is with all the other books you look up. All you have to do is to go to google.com. If you need to look up something, go to Google Books and you can read the first chapter or the whole book. They highlight the key parts and words, and you can easily search for words and phrases in the book.