I’m concerned

"Twisted Programming" 2nd Ed. price difference?

Why is buying 'Twisted Network Programming Essentials, 2nd Ed.' via this link: http://shop.oreilly.com/product/06369... $10 more expensive than thru this one: http://my.safaribooksonline.com/97814...
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  • Hello Robert,

    I'd be happy to help. The first link is for the early release ebook through oreilly.com. These early release ebooks are priced the same as the final version of the ebook. By purchasing the early release ebook through oreilly.com you will eventually get the final version of the ebook. The ebook will be DRM-free, and you will have access to PDF, ePub, Kindle-compatible .mobi, and DAISY. More information on O'Reilly ebooks can be found here: http://shop.oreilly.com/category/cust....

    The second link is to purchase the Rough Cut version of Twisted Network Programming Essentials, 2nd Ed through Safari Books Online. It is priced differently because it is being made available through Safari Books Online as a Rough Cut version. If you have questions about this version of the ebook please contact Safari Books Online here:

    Safari Books Online
    or email them at:

    Hope that helps and have a great day!

    Kind regards,
    Paul Fichera
    Customer Service Representative
    O'Reilly Media
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