Google Books Downloader
Google Books Downloader is a download manager that will help you to easily download and save an eBook from Google Books.
All you need to do is access the website, copy the URL of the book and paste it in the main window and select the output format.
It offers PDF and JPG as output format as well as several resolution of 350 to 1280 pixels.
The short, Google Book Downloader is a very useful application that will provide you a short time collecting a huge book.