Non-store retailing involves sales made directly to consumers without using physical stores. It includes direct marketing through methods like telemarketing, direct mail, and e-commerce. Non-store retailing offers consumers convenience through purchasing anytime from anywhere and delivery to their preferred location. It has been growing faster than traditional retail stores and now accounts for over 15% of all consumer purchases. However, non-store retailing also faces challenges like security issues with online payments and slower internet connections.