Alfred Adler developed Adlerian therapy based on his experiences growing up in Vienna. Key aspects of Adlerian therapy include viewing human behavior as goal-oriented and purposeful, focusing on social relationships and community feeling rather than internal drives, and helping clients overcome feelings of inferiority by identifying and changing mistaken beliefs about themselves and life. The therapeutic process involves forming a collaborative relationship, exploring the client's lifestyle and goals, and encouraging new insights to promote social interest and contribution to society.