Holistic marketing is a concept that recognizes the interdependencies between marketing programs, processes, and activities. It involves internal marketing between departments, relationship marketing to build better connections with customers, performance marketing to drive sales growth, and integrated marketing where products, services, and marketing work together for organizational growth. Holistic marketing is important because it allows companies to build their brand among all stakeholders through consistent messaging, increase efficiency by reducing repetition, and effectively reinforce the brand through a synergistic approach.