David Hall began book selling in 1998, as the Internet book market was just beginning to form. He has since evolved various book-selling models through all the major online venues. In 2005, Hall launched National Book Auctions, a targeted service, offering experience and expertise unique to marketing both antique and modern books and ephemera. Over the years, National Book Auctions has sold over 250,000 volumes through traditional bricks-and-mortar locations and on the Internet. During that time, a number of trends have emerged which shaped the future of book collecting and book selling and National Book Auctions has changed with the times. David Hall is a USPAP-certified appraiser and can be reached at firstname.lastname@example.org.