This document provides an overview of customer loyalty and its importance to organizations. It defines customer loyalty and discusses the benefits it provides, such as lower customer acquisition costs, word-of-mouth marketing, and shielding from price competition. The document examines different types of loyalty, like behavioral versus attitudinal, and monogamous versus polygamous. It also explores factors that influence loyalty, like the marketing mix of product, price, place, and promotion. Finally, it analyzes models for building customer loyalty, such as customer relationship management, satisfaction programs, retention programs, and loyalty reward programs.