Insult through ignorance is a very subtle form of psychological violence and causes millions in damages for companies. Lilo Endriss offers education, support for those affected, and prevention. Since employees often struggle to recognize and cope with this type of subtle psychological attacks, this book is primarily aimed at readers with personnel responsibilities who stand outside of the despicable power games. However, those directly affected will also find helpful insights here. Ignorant behaviors are often intentionally used to harm another person. Direct communication is systematically denied to use it as a means of power, for example, through the constant disregard for the concerns of the other person or through social exclusion. This is where leaders are called to action. This well-founded book raises the reader's awareness of the issue.