Business Informatics conveys the fundamentals of the economic success factor of information, covering technologies, security aspects, and applications in companies. Each chapter is dedicated to a fundamental concept from business informatics, describing the basic knowledge, current performance level, and anticipated developments. The use of symbols and marginal notes ensures good clarity, allowing the reader to quickly and confidently orient themselves. The clear structure, combined with a comprehensive index, enables the book to be used both as a textbook and as a reference work. At the end of the book, a selection of interesting events from the history of information technology is assigned to each month, covering almost every day of the calendar.