Individual psychology is a term used specifically to refer to the psychological method or science founded by the Viennese psychiatrist Alfred Adler (Fall, Holden, & Marquis, 2002). The English edition of Adler’s work on the subject (1925) is a collection of papers and lectures given mainly in 1912-1914, and covers the whole range of human psychology in a single survey, intended to mirror the indivisible unity of the personality.