Culture can be defined in several ways, such as shared assumptions that guide a group (Schein), how a group solves problems (Trompenaars), or shared programming of the mind (Hofstede). Culture develops over three stages - birth, mid-life, and maturity. It includes elements like communication, behaviors, experiences, values, and artifacts. Culture is important for organizations as it focuses the human side, facilitates systems, provides meaning, and shapes attitudes. There are multiple layers and theories of culture, and guidelines for developing a stable culture in multinational corporations.