Dawid Cieslak participated in a course on Digital and Social Media Marketing from September 2015 to November 2015 taught by several professors. The introductory course allowed students to understand digital marketing concepts, methods, and how to develop, implement, and evaluate digital marketing activities. The certificate verifies Dawid Cieslak's participation in the course through an online education platform but does not confer any degree, grade, credit, or verify his identity.