This industry comprises establishments primarily engaged in retailing new books, newspapers, magazines, and other periodicals. Retailing newspapers, magazines, and other periodicals via electronic home shopping, mail-order, or direct sale--are classified in Subsector 454, Nonstore Retailers; Home delivery of newspapers--are classified in Industry 454390, Other Direct Selling Establishments; and Retailing used books, newspapers, magazines, and other periodicals--are classified in Industry 453310, Used Merchandise Stores.