Retailers are increasingly using multiple channels to interact with customers, including stores, catalogs, call centers, websites, mobile apps, and kiosks. This allows them to provide customers with choices in how and when they shop. Each channel offers unique benefits - stores allow touching products and social browsing, while online provides more information and customization. Retailers are becoming multichannel to reach more customers, build customer loyalty, gain insights into shopping behaviors, and overcome limitations of individual channels. Effective multichannel retailing requires integrating customer experiences across channels.