A cult of personality, or a cult of the leader, is the result of an effort which is made to create an idealized and heroic image of a glorious leader, often through unquestioning flattery and praise. Historically, it has developed through techniques of mass media, propaganda, spectacle, the arts, patriotism, and government-organized demonstrations and rallies. A cult of personality is similar to apotheosis, except that it is established by modern social engineering techniques, usually by the state or the party in one-party states and dominant-party states. Cults of personality often accompany the leaders of totalitarian or authoritarian governments. They can also be seen in some monarchies, theocracies, failed democracies and even in liberal democracies.

Totalitarianism is a political system and a form of government that prohibits opposition political parties, disregards and outlaws the political claims of individual and group opposition to the state, and controls the public sphere and the private sphere of society. In the field of political science, totalitarianism is the extreme form of authoritarianism, wherein all socio-political power is held by a dictator, who also controls the national politics and the peoples of the nation with continual propaganda campaigns that are broadcast by state-controlled and by friendly private mass communications media.