Mass communication relates to various means of relaying information to large audiences through mass media such as newspapers, magazines, radio, television and film. It includes developing and disseminating advertising and news, as well as processes like diffusion of information and media effects on public opinion. Effective marketing utilizes a variety of communication tools including advertising, sales promotion, public relations, events and experiences to build brand awareness and sales. Proper planning and allocation of budgets, messaging, timing and evaluation of these tools is needed to achieve communication goals.