Google Book Search is a book marketing programme, not an online library, and as such, a whole page of a book will not be viewable online unless expressly permitted by the copyright holder. Until then, people who find a copyrighted book will see, at most, basic bibliographic information about the book plus a few snippets -- sentences of their search term in context.
If the copyright holder has given us permission to show more, users can see a Limited Preview which allows them to browse a limited number of pages from the book.
We aim to help our users discover books, not read them online. In addition, copy, save and print functions are disabled. See the Programme Basics page
And, if you are the copyright holder, you can remove any of your books from Google Book Search at any time. See "What if I find one of my books in Google Book Search and would like it removed?"