[de] Die Macht der Disziplin Campus Verlag
[en] Willpower · Rediscovering the Greatest Human Strength Penguin Books
[en] The Power of Bad, How the Negativity Effect Rules Us and How We Can Rule It Penguin Press
[en] [english 01] • Willpower Penguin Group
[en] Is There Anything Good About Men? · How Cultures Flourish by Exploiting Men Oxford University Press, USA
[en] Is There Anything Good About Men? Oxford University Press, USA
[pt] Força de Vontade - A redescoberta do poder humano Larousse
[en] Evil · Inside Human Violence and Cruelty Holt Paperbacks