You can buy your copy of Offline from your choice of the following locations:
Autographed copies of Offline are now available at the Barnes and Noble in Irvine, California. If your local bookstore doesn't carry Offline, ask them to order it for you.
You can purchase Offline from these online bookstores:
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Direct from Publisher
You may also purchase Offline directly from Lulu.com. Use the link below or visit: http://www.lulu.com/mastern.