This bachelor thesis (Effectiveness of marketing communications of BLAŽEK PRAHA a.s.) focuses on marketing communication of the company and determining its effectiveness, which was verified by means of questionnaire survey and its evaluation. The thesis is divided into 5 chapters, the theoretical part, the practical part, the conclusion, the used literature and attachments. The theoretical part is divided into 5 main chapters and the practical one into 4 chapters and into several subchapters. In the theoretical part are introduced the basic concepts related to the topic, such as marketing, marketing communication, marketing strategy, public relations and brand. In the practical part is first the company BLAŽEK PRAHA a.s. introduced, its foc...