About the book: 2015 / "So, kids, where did we stop yesterday?.. We analyzed the route of Klaus Herder's expedition. As far as I remember, they analyzed and found all eighteen mistakes that Herder made. But, on the one hand, we found them and even made a list, but on the other hand, we forgot to ask ourselves the question: how could it even happen that the experienced captain Herder made these mistakes? I'll give you a hint: which one should be considered first? Oh, kids, kids…»