• "Free Mall Girls Riding on The Escalator Creative Commons" is Copyrighted by Flickr user: Pink Sherbet Photography (D. Sharon Pruitt) under the Creative Commons Attribution license.
  
  

Psychoanalysis

• Freudian theory postulates that an alter ego is a personality disorder in which a person can exhibit multiple, distinct personalities. These separate personalities are known as alter egos or alters.
  
  

Law

• Alter ego is a business term defining an individual or a group of individuals that has conducted business illegally and unethically while representing a business.
  
  

Relationships

• "Kali&Jenna" is Copyrighted by Flickr user: Joyseph (Joy Coffman) under the Creative Commons Attribution license.
  
  An alter ego also describes a very close friend and someone who is always around.
  
  

Literature

• An alter ego is also a device used in literary works. In the novella, "The Strange Case of Dr. Jekyll and Mr. Hyde," by Robert Louis Stevenson, Mr. Hyde is the alter ego of Dr. Jekyll.
  
  

Popular Culture

• Many performers use an alter ego for their performances, such as Beyonce, who uses the alter ego Sasha Fierce.