My e-book “How to write a German CV” is now available on Amazon as a Kindle download, where it costs slightly less than here in the download store. On the other hand, the Kindle version is not in PDF and does not include the audio book.
Kindle books can also be viewed using the software for Windows, Mac, or even with iPad and Android apps, so if you are happy with the restrictions, then you could install one of these and read the book that way and save on the price. Of course, that also opens up a whole range of other books for you as well, as many classic books are available for the Kindle reading software for free.
Here are the links to the Amazon stores where the book is listed:
(Thanks to Ben Curtis for his guide on how to publish to the Kindle which was a great help!)