A campaign is a planned set of activities that people carry out over a period of time in order to achieve a particular aim, such as social or political change. There are different types of campaigns, including political, business, military, and marketing campaigns. Political campaigns are organized efforts that seek to influence the decision-making process within a specific group, often referring to electoral campaigns in democracies, by which representatives are chosen or referendums are decided. The most high-profile political campaigns are focused on general elections and candidates for head of state or head of government, often a president or prime minister. The message of a political campaign contains the ideas that the candidate wants to share with the voters, and it often consists of several talking points about policy issues. Marketing campaigns promote products through different types of media, such as television, radio, print, and online platforms, and they are not solely reliant on advertising and can include demonstrations, video conferencing, and other interactive techniques.