Bias is when someone or something is viewed or shown in a consistently inaccurate way. (Bias is usually negative, though one can have a positive bias as well.)

Bias by selection changes how the subject is shown by giving only part of the picture. (Imagine if all we ever saw of you was the time you spend in front of the mirror; we’d assume you were very vain, because we never see you doing anything else.)

Bias by omission changes how the subject is shown by leaving out important things. (Imagine if we never saw you working; we’d assume you were lazy.)

Bias by placement changes how the subject is shown by deciding what to show first. We assume that the first thing we’re shown is the most important. (Imagine that the first thing we heard about you was that you once slipped and fell in the cafeteria; we’d assume you were clumsy, even if that only happened once.)

Bias by image changes how the subject is shown by choosing a particular picture or image. (Imagine that a story about you was accompanied by a picture of you dressed as a clown; we probably wouldn’t take you seriously.)

Bias by naming changes how the subject is shown by choosing a name or a title. (Imagine how we’d see you differently if you were called Tim or Timmy; imagine how we’d see you differently if you were called Dr. Smith or Mrs. Smith; imagine how we’d see you differently if you were described as a mechanic or as an engineer.)

Bias by word choice changes how the subject is shown by using words with a positive or negative connotation. (Imagine someone’s hair described as being chestnut, brown or mousy. They all mean the same thing, but which sounds better and which sounds worse?)