The "Oxford Textbook of Marketing" covers various aspects of marketing, including understanding customers, buyer behavior, product offerings, marketing strategy formulation, and implementation. The researchers discuss market orientation, consumer behavior, pricing, marketing communications, and brand management. Key findings include the importance of differentiation through the marketing mix, strategic marketing decisions, relationship marketing, and designing new products and services. The textbook provides insights into marketing in different sectors, such as consumer and organizational markets, small firms, and services.