This research essay explores the characteristics and impact of mass media on society. It discusses the importance of mass media in providing information to the public and shaping public opinion. The essay also examines the different purposes of mass media, such as advocacy, entertainment, and public service announcements. Additionally, it delves into the effects of mass media, including the knowledge gap, agenda setting, and cultivation of perception. The essay concludes by discussing the pros and cons of mass media and the emergence of digital media.