This document discusses business-to-business (B2B) marketing. It explains that B2B marketing involves marketing goods and services to companies, government bodies, institutions, and non-profit organizations for use in producing their own products or facilitating their operations. Key differences between B2B and business-to-consumer marketing are outlined, including larger sales and purchase volumes and a closer buyer-seller relationship in B2B. The stages of the B2B marketing and buying process are mentioned. Challenges of marketing to government, institutional, and international B2B markets are also addressed.