Mass Psychology

English :

• Le Bon, Gustave. The Crowd: A Study of the Popular Mind
  http://etext.virginia.edu/toc/modeng/public/BonCrow.html
• In Propaganda (1928), his most important book, Bernays argued that the manipulation of public opinion was a necessary part of democracy. http://www.historyisaweapon.org/defcon1/bernprop.html

German

• Psychologie der Massen, http://www.textlog.de/le-bon-psychologie.html
• http://www.mehr-freiheit.de/idee/lebon.html

on risk management

"only when the tide goes out, do you realise who has been swinmming naked." warren buffet