The word business administration course promised in advance to be a strenuous and numbers-based seminar. The 5 seminar days went differently than expected. Marcus Disselkamp created a pleasant atmosphere as an expert and implemented the topic holistically with expert knowledge and with examples from life, informative, interactive, entertaining, understandable and sustainable. Every question was answered and even marginal topics were discussed. It was great & interesting 5 days; related to the people and the topic. Absolutely recommendable!