Live interview with Diana Gabaldon at Poisoned Pen
The actual publication date is October 27, but they're doing this event ahead of time because Diana will be in Scotland on the 27th.
UPDATE 10/12/2015 7:57 am: The event is over, but you can see the video here. It's about an hour long, and very interesting.
For more details about the Official OUTLANDER Coloring Book, look here. For information about both of the OUTLANDISH COMPANION books, including the all-new Volume 2, look here.