Useful tool. If this wasn't there, I'd have to take a screenshot every page and save it. So, I'm really thankful for this.

First time trying this script using FF v18.0.1 and found this to be a useless script as the book I need is 1120 pages and the script downloader scanned the pages, presented me with 348(? something close to this number anyway) .png's to download 1 at a time. This makes absolutely no sense to me - who is going to sit and DL those ??? Anyway, like I said maybe my bad for lack of knowledge about the script but then Ease of Use comes to mind too.

I've always found this script good, but I note there appears to be a version 2.3 modified by a different author here:
http://userscripts.org/scripts/show/110805
At a cursory glance it seems pretty similar, just with a few new tweaks

i would like to say to the admin for script for activate greasemonkey or books downloader, because i still enjoy till now for download some books with free. so i feel enjoy for reading and studying everything i want. so, thanks to you much.

This programs may have worked well once but it certainly hasn't performed well for awhile. It may be abandoned (no one seems to know) and it can be a bit difficult to understand for beginners. At this point it isn't worth using unless there's some update of features.

It can also be optimized if merged with some more programming and the the code merge all the images and output a pdf file instead. :)
But too much from GM script I think. Will see if It can be done with PHP. :)

This is a time saver and works well with the current version of FF.

...especially about downloading all the pictures. It could make a list of URLs for Orbit Downloader, for example.

So far it works, I am currently downloading a PHP 5 book to learn PHP5! Goo userscripts and google!

Version 2.1 appears to have trouble locating download links when a google preview loads at a page other than the first page.

For example the following link loads page #168, but the "Download this book" button does not appear:

http://books.google.com/books?id=3Gj0rLx9gy0C&p...

Same is true for the "Download this page" button (i.e., PA169) on the next page (i.e., page #169)