This document summarizes key lessons the author has learned about organizational politics from their work experience and a course on the topic. The author learned to pay attention to "political signals" from coworkers and not be naive about others' intentions. They also learned that being tough, like having to lay off employees, does not mean being mean, and that their work will not speak for itself - the author needs to promote themselves for promotions. The overall lesson is that organizations have many types of people with different motivations, and it is naive to assume everyone thinks the same.