Psychology | Universal Music Group | Warner Music Group | Coxeter group | psychology | Volkswagen Group | Group of 77 | RTL Group | girl group | BT Group | ABB Group | Group One | Virgin Group | Thales Group | ING Group | group | Rio Tinto Group | Bloomsbury Group | Penguin Group | Carlsberg Group | Borders Group | Arup Group Limited | Benetton Group | Stagecoach Group | LMFAO (group) | Anschutz Entertainment Group | Tata Group | Rootes Group | Westfield Group | Group races |
Trotter's book, Instincts of the Herd in Peace and War forms the basis for the research of both Wilfred Bion and Ernest Jones who established what would be called group psychology.