Clicking on the title of a book from the list of results displays the details about the title, it location, its availability, the subject headings assigned to it, and often its contents.
Depending on the type of material, you may need to use the location and call number information to find the material on the shelf in the library, or, if it is an online resource, click on the link to the full text.
Just because they call it "Google Scholar" that's no guarantee that everything you find here is scholarly. Use with caution, as you would any resource based on unrestricted self-publication.