I have no idea. I can tell you that it is going to cost 130.00 to attend, according to the website I visited..and the money has to be in by May and there are no refunds. I have to say I have hardly even heard of the other authors that are going to be there. It says no outside books due to time constraints, yet it is a 3 day event, that you must pay to attend, while I will admit that I don't want to lug a ton of books around I would already have my copy of Changes, so I would want it signed, so this makes no sense to me...idk..Vic