The aim of this thesis is to capture significant segmentation variables that shape marketing communication with an emphasis on advertising. The theoretical part deals with the concepts of market segmentation, segmentation variables, marketing communication, advertising and research. The practical part is focused on the realization of the actual research using a questionnaire survey and the evaluation of questions from Market Media Lifestyle. Only traditional descriptive segmentation variables are involved. The questions in the questionnaire are divided into several areas: trust in advertising, influence of advertising in the selection and purchase of a product, condemnation of advertising, advertising in different media types (television, r...