What do you do when Digital Restrictions Management prevents you from doing a lot of things on your own device. I do not know if we can even say it is a device we own, as the company offering books to us can revoke the books at will, without asking you. This was infamously and ironically seen in the removal of Nineteen Eighty Four from Kindle devices without their owners permission.
This is what RMS has to say about Kindle and its practices by Amazon:

“This malicious device designed to attack the traditional freedoms of readers: There’s the freedom to acquire a book anonymously, paying cash — impossible with the Kindle for all well-known recent books. There’s the freedom to give, lend, or sell a book to anyone you wish — blocked by DRM and unjust licenses. Then there’s the freedom to keep a book — denied by a back door for remote deletion of books.” — Richard Stallman

So what do you do against such mal-practices and devices operations which are defective by design?
Since these companies do all in their power to prevent users from taking any stuff out, using all hi-fi programming, what can one do about them?
Here is one low tech solution! And one fine use of Lego Mindstorms!
[vimeo http://www.vimeo.com/73675285 w=400&h=225]
via DIY kindle scanner
Also if you are rather old-fashioned, and even lower tech solution would be to simply one can just make a carbon-copy of the Kindle e-book from a copier or scanner, thanks to their E ink technology, it is as good as a printed book.