Kniha je věnována fenoménu humoru ve školním prostředí. Přináší výsledky původního empirického výzkumu, v němž jako datový zdroj slouží písemná vyprávění žáků a učitelů popisující jejich humorné zážitky ze školy. Prostřednictvím narativní analýzy těchto textů jsou zkoumány jednak typické podoby školního humoru, jednak funkce, které humor plní v sociálním životě a vzájemných vztazích žáků a učitelů. ,The publication is devoted to the phenomenon of humor in school environment. It presents results of original empirical research based on narrative analysis of written narratives provided by pupils and teachers from lower secondary schools. The book describes typical motives and plots of school humor and studies its functions in a detail. Although it is assumed that humor can facilitate process of learning, the realized research shows that the center of its operation is in the field of social relations. On one hand humor has a potential to harmonize relationships within the group and to strengthen solidarity, on the other hand it can serve as an offensive weapon in power struggles and negotiations. The publication also discusses the fact that humor is an important instrument that enables pupils to cope with demands the school imposes on them and to deal with some institutional features of the school, especially with boredom and oppressive authority of adults. Against the background of these findings is answered the question whether humor disrupts and challenges the traditional school procedures and mechanisms or conversely contributes to their maintenance. The book contains a number of authentic examples which allow readers to get an idea about the form of humor in a contemporary Czech school.