This book presents the fundamentals of business administration upon which the individual functions such as marketing, production, finance, human resources and management are based. It focuses on the following questions: What is the relevant macroeconomic context for a company? What are the main characteristics of a company? Which tasks does managing a company involve? How important is the environment of a company? Which goals does a company pursue? The book aims at everyone who deals with these basic questions of business administration and who wants to understand how a company functions in its economic, ecological, social, and legal environment.