Most of the time Ubuntu is associated with the well-known distribution of the Linux operating system—a main topic of discussion in books that contains this keyword in their title. But it can also be interesting to learn something more not only about the origin of the word, but the practice behind it. A great explanation I saw: "Ubuntu is an African humanist philosophy that focuses on being peaceful, prosperous community, where riches are shared and people are treated with respect." According to Wikipedia, characteristics of this philosophy include extroverted communities, socialisation of prosperity, redemption, deference to hierarchy, humanism.