The Manning book page leads to all the online resources about the book like
- the table of contents
- free chapters
- reader's forum
- errata Please note that the PDF/ebook version of the book is only available via the Manning book page.
The Amazon page
allows for quickly buying the book.
There also is a German edition of the book called "Groovy im Einsatz".
You can find it at Amazon DE and on the Hanser publishing site where you can also get the PDF/ebook version.
The Japanese edition is available at Amazon JP and on the publisher site.