Scientific creation in Advertising and Public Relations has experienced a remarkable growth in the last twenty years both in the number of its works and in the contents covered. This work identifies and analyses those topics with the greatest presence in Spanish scientific journals and thus shows the scene of scientific production in these areas. It is an exploratory research of a qualitative nature that emphasizes some of the authors in each of these trends but, above all, identifies the issues that most concern researchers and the possible reasons. The results show an empirical research applied to professional practice and based on the theories of Advertising and Public Relations.