Kristj itibaren Gölköy Mahallesi itibaren Gölköy Mahallesi

Argues that not all customers are equally profitable to a company and suggests that companies should therefore treat customers differently, improving service to the best customers and getting more of their business while finding ways to either make unprofitable customers profitable or let them go. Like many good ideas, this one seems obvious until you realize that most companies do not act as if they understand it. The book gets bogged down in the details from time to time, but the central idea is rich with implications for most companies.