The central topic of this thesis is the segmentation of the chocolate bar market in the Czech Republic. The theoretical part consists of a description of concepts related to the topic of consumer behavior and individual marketing approaches. Its main part is then devoted to the definition of the market segmentation process, including individual segmentation criteria and approaches. The aim of the practical part is to discover and develop the profile of individual segments using primary and secondary MML-TGI data. The resulting profiles and segments are precisely described based on the information gained from both researches. Also marketing recommendations on how to address the segments most effectively are created.Ústředním tématem diplomov...