P. Ekman: opere
- 1994 The Nature of Emotion: Fundamental Questions, Oxford University Press, New York, [rif.]
- a cura di: id., R.J. Davidson
- 1999 Facial Expressions, Wiley, New York, [rif.]
- in: T. Dalgleish, M. J. Power (eds.), Handbook of Cognition and Emotion
- 2003 Emotions Inside Out: 130 Years After Darwin's The Expression of the Emotions in Man and Animals, New York Academy of Sciences, New York, [rif.]
- a cura di: id., J.J. Campos, R.J. Davidson, F.B.M. de Waal