Ключевые слова: art, back to school, banking, bar code, barcode, binary code, business, buying, chalk, chalkboard, coding, communication, computer, connection, drawing, ecommerce, epidemic, equipment, hand, holding, icon, idea, identity, illustration, internet, laser, marketing, merchandise, mobile phone, modern, number, paying, price, qr code, reading, retail, sale, selling, service, shopping, showing, sketch, smart phone, smartphone, store, symbol, technology, telephone, text, warehouse,