Personal selling refers to direct face-to-face communication between sellers and prospective buyers with the goal of making sales. It involves finding potential buyers, convincing them to purchase through demonstrations and presentations, and providing customer service. There are different types of salespeople, including order getters who increase sales to new and current customers, order takers who process purchase orders for current customers, and support personnel who locate prospects and provide after-sales service. The selling process involves several steps like prospecting, presenting to the customer, addressing objections, and following up after the sale.