The growing number of events and their increasing importance, the use of modern online tools for participant management, the proliferation of media platforms in the context of social media, and especially the changed responsibilities in organizing events within companies compel those in charge to take action. The cost block of events has sparked the interest of all stakeholders. Event guidelines can serve as tools, solutions, or management concepts. The content of this book addresses both the theoretical foundations and necessities of event guidelines, as well as practical handling, including the key steps for implementation and execution within a company. In this context, event guidelines are also seen as the foundation for conflict-free, goal-oriented, and thus successful work.