Will say thanks. Please is silence your devices and if youre on social media today please use the gbs. Feedback is valuable and surveys are available here and on our website. By submitting a survey will be entered into a drawing for hundred dollars visa gift card and i hope you all put that in. Our author will sign books immediately after this presentation and copies are on sale to your right. Quick word about buying books, this is a free event, but it helps the book festival if you buy a book and the more books you buy the more books the festival cells in the more publishers will want to send their authors here to speak with us. Purchasing books from our partners help support one of the world great independent bookstores and supports local jobs. I have a bag full over there myself. If you know this program, please buy books today. Our author this afternoon is Sharon Weinberger in the book is the imagineers of war the untold story of darpa this is sharons third book and also her third