For a long time, pragmatic research focused strongly on politeness phenomena. Recently, however, more attention has been given to communication that might be described as 'impolite', 'rude', 'aggressive', 'face-attacking', etc. This course aims at defining, relating, and discussing these concepts. It will start out from seminal theories on politeness (e.g. Lakoff, Leech, and Brown/Levinson), which have also inspired research in impoliteness and rudeness. The course covers theoretical works on linguistic impoliteness and rudeness (e.g. Bousfield, Culpeper, and Terkourafi), as well as empirical analyses of (im-)politeness phenomena in various communities of practice.