Discrimination involves prejudicial treatment of individuals based on group membership. It can include excluding groups from opportunities available to others or believing one's own race is superior. There are many forms of discrimination, such as racial discrimination which judges based on skin color or ethnicity, social discrimination which disrespects people for disabilities or orientations, and religious discrimination. To combat discrimination, campaigns in Europe provide information about valuing diversity and preventing discrimination in the workplace based on factors like race or gender. The conclusion advocates treating all people equally regardless of appearance, beliefs, abilities, and stopping prejudice and discrimination through collective action.