The document discusses customer relationship management (CRM), describing it as a customer-centric business strategy aimed at maximizing profitability, revenue, and customer satisfaction. It contrasts traditional CRM, which is sales-focused, with modern CRM, which satisfies all customer needs. CRM is important because customers are the main source of income and provide valuable information; retaining existing customers costs less than acquiring new ones. CRM uses information technology like data mining to learn about customers and increase sales and customer loyalty.