The author
Dirk Ertner (DE) is a business informatics specialist based in Berlin. DE has worked independently as a coach, developer, systems architect and project manager since 1992. After many years of training and coaching, the focus shifted towards software development and projects in larger organisations.
In seminars, training and projects, people repeatedly asked where they could find more detailed spreadsheet knowledge in one place. The German-language book “Spread Cheat” grew out of that experience, connecting fundamentals and advanced techniques through practical tasks.
