JSWolf is correct, the Tor email subscription versions are better (lacking DRM). I provided the link to the Amazon version as a service to those who would rather not get involved with releasing their email address to Tor, or who just would prefer the convenience of the Kindle download.
Given that Tor has continued the newsletter free ebook offer long beyond the original deadline, I would recommend any ereader (person who reads digital books) to join their newsletter.
It is a fantastic deal (i.e. free) and includes great SF/Fantasy screen saver artwork.
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