This document provides an overview of the first chapter of the textbook "Understanding Intercultural Communication Second Edition" which discusses why studying intercultural communication is important. It lists several practical reasons for studying intercultural communication, such as adjusting to workforce diversity both globally and domestically, engaging in creative problem solving, and enhancing relationships. It also defines culture as a learned system of meanings, norms, symbols, traditions and beliefs that are shared within a community and passed down over generations. Finally, it uses the metaphor of an iceberg to depict different levels of culture from surface/popular culture to deeper levels like norms and traditions.