Alfred Adler's theory of individual psychology posits that personality issues stem from feelings of inferiority and a drive for superiority, emphasizing the uniqueness of each individual. Adlerian therapy involves four stages: establishing a therapeutic relationship, assessing psychological dynamics, fostering insight, and encouraging new choices. The application of Adlerian principles extends to education, parent-child dynamics, couples, families, and group counseling, emphasizing social interest and the development of self-worth.