Brand architecture is the structure of brands within a company and how they relate to each other. It defines hierarchies and how sub-brands support or detract from corporate brands. Brand architecture should be fluid to leverage maximum value as markets change rapidly. There are different types of architectures including monolithic, endorsed, and branded. Developing an effective brand architecture is a process that involves auditing brands, defining brand essences, considering strategic fit, and engaging designers to create visual expressions. An important role is the brand architect, who bridges strategy and expression by providing innovative brand solutions.