Alfred W. Adler (February 7, 1870 – May 28, 1937) was an Austrian medical doctor, psychotherapist, and founder of the school of individual psychology His emphasis on the importance of feelings of inferiority — the inferiority complex — is recognized as isolating an element which plays a key role in personality development. Alfred Adler considered human beings as an individual whole, therefore he called his psychology "Individual Psychology".

source: wikipedia