From eBook Converter:
Google books can be viewed online but there is no way to make the contents available offline easily, Google book download is tools to download parts or entire books in PDF format. it is quite easy to use like a browser, one-click to download any book available in full view from Google books.
Key Features: One-click download. Manual mode for download copy-protected books. Automatic mode for download public domain books and PDF document. It is a Web browser, easy to use. Safely download, prevent to lockout by Google.