1. White propaganda: Presents information in a truthful and transparent manner to promote a particular ideology or cause.
2. Black propaganda: Spreads false information while disguising the source to deceive and manipulate the audience.
3. Gray propaganda: Mixes elements of both white and black propaganda, making it harder to distinguish the truth.

White propaganda is composed entirely of true information. Gray propaganda is true with essential information missing. Black propaganda is composed of outright lies.

The same as it does now, propaganda is (usually distorted) information given to you to make you believe a certain concept, be this true, or in the case of black propaganda; untrue.

In times of war, Black and White Propaganda were the two types of propaganda released to the public; both of which were designed to make the enemy look cruel or weak.

White propaganda focused on facts to enlighten the public to the enemies danger or cruelty; for example, the bombing of London in 1941 was released in the form of a poster with the slogan 'Men, will you stand for this?' to show the danger that the Nazis posed to Britain.

Black propaganda, however, over exaggerated or flat-out lied about the facts.

White propaganda is truthful and openly attributed to a source, serving to promote a specific viewpoint. Black propaganda involves lies or deception and is usually attributed to a false source to mislead the audience. Gray propaganda is more ambiguous, where the source is not clearly identified, making it difficult for the audience to discern the true motives behind the message.