Just a note that Think Stats/Think Bayes are available for free on the authors website: http://greenteapress.com/wp/
Is this a good book to start with?
It's designed for teaching statistics to people who are already proficient at programming. I learned statistics first then learned programming so I can't really say from experience how good it as but I like the examples and the writing is clear.
Humble Bundle content is DRM-free. Once you pay you get download links in your e-mail for downloading the content. Books are offered in PDF, ePub and Mobi formats. You can back up the books and/or keep the e-mail for future.
If you sign up for an account you can also save your purchase to your account and then access all the purchases made through the library.
* Hadoop: the definitive guide
* Cassandra: The definitive guide
And they are both excellent books. I have heard good things about:
* Think Stats/Think Bayes
* Learning Spark/High Performance Spark
EDIT: I just bought the bundle. The PDFs seem legit and DRM-free -- O'Reilly no longer offers DRM-free ebooks, so this is useful.