Pre-order E-books about OS X 10.10 Yosemite

Now that OS X 10.10 Yosemite has been submitted to developers as a "Golden Master", now is the best time to pre-order my e-book "OS X 10.10 Yosemite for Users, Administrators and Developers".

You can purchase the ePub from Apple or http://www.amazon.com/OS-10-10-Yosemite-Administrators-Developers-ebook/dp/B00N72V9BM/?tag=sportsenthus-20'>Amazon. You can also order the iBooks edition from Apple. There is also a subset of the entire e-book, entitled "OS X 10.10 Yosemite for Server Administrators", this is available exclusively from Apple in either ePub or iBooks editions. The latest that these books will be available is November 1st.