It is usually recommended to send a friendly email first, but I would skip that step with Amazon since they have an entire department and process built around receiving and acting on copyright claims under the DMCA.
You need to sign it, either physically or by dropping an image into the claim document (do it as a Word document or Google doc). Remember that it is a legal document, so you must be sure ('in good faith') that the claim is accurate, which may require that you either purchase a copy of the infringing book or downloading the sample to confirm that it is your content.
You can get more information at the bottom of this page:
(note: while I have sent out DMCA requests previously, I have never had to send one to Amazon, but the process is similar to dealing with other service providers)
You need to email copyright@amazon.com
The template to use is something like this:
http://labnol.blogspot.com/2007/09/dmca-notice-of-copyright-...
You need to sign it, either physically or by dropping an image into the claim document (do it as a Word document or Google doc). Remember that it is a legal document, so you must be sure ('in good faith') that the claim is accurate, which may require that you either purchase a copy of the infringing book or downloading the sample to confirm that it is your content.
You can get more information at the bottom of this page:
http://www.amazon.com/gp/help/customer/display.html/ref=foot...
(note: while I have sent out DMCA requests previously, I have never had to send one to Amazon, but the process is similar to dealing with other service providers)