The document discusses the definitions of culture and popular culture. It defines culture as a social group's system of meaning that is symbolic, shared, learned, and ordinary. Popular culture consists of artifacts, events, and products that surround people, reflect audience beliefs and values, are commercial, and often imitative. The popularity of cultural elements is directly proportional to how much they reflect the prevailing attitudes of their time, or zeitgeist. Popular culture both reflects and shapes audience values and beliefs.