This chapter discusses ethical issues in advertising. It covers the role of advertising in modern business, including its economic, social and psychological functions. Advertising plays an important role in business by communicating information about products and services. It also influences culture and consumer behavior. However, there are ethical standards that advertising should follow to avoid misleading consumers or using offensive content. Guidelines regulate truthfulness in advertising and respect for public decency and social norms. Common ethical issues include misleading claims, stereotypes, and advertising controversial products like alcohol.