This document differentiates between biases and prejudices. Biases refer to unfair inclinations for or against people, ideas, or things. Common types of biases include anchoring bias, media bias, confirmation bias, conformity bias, and halo effect. Prejudices refer to negative preconceived opinions that are formed without reason or experience. Common types of prejudices include racism, sexism, classism, ageism, and religious prejudices. The key difference between biases and prejudices is that biases can be positive or negative and result in unfairness, while prejudices are usually negative and result in discrimination.