The document discusses the evolution of personal selling over time from the 1930s to present day. It outlines 4 main time periods: 1930 to 1960 focused on short-term sales; 1960 to 1990 focused on satisfying customer needs as a short-term seller; after 1990 focused on building long-term customer and seller relationships. The role of the salesperson evolved from a provider to a persuader to a problem solver and now focuses on value creation. Activities also evolved from taking orders to aggressively convincing buyers to marketing available offerings and now creating new alternatives.