This from makeuseof.com
Some books are available in their entirety, some have limited previews and the others have no previews at all. It so happens that often one needs only a topic or two from a specific book. While the Internet is a good source for finding the information otherwise, I have quite often seen people trying (unsuccessfully of course) to copy-paste, save images or take screen shots of Google Book search results.
If you have been in a similar situation where you badly wanted a page or two of the book, try the Google Books Downloader.
Might be pretty handy, since Google Book Search has a lot of genealogy-related material!
