What's in a face? Counseling trainees' ability to read emotions.

Constants across cultures in the face and emotion.

Paul Ekman, Wallace V. Friesen · Journal of Personality and Social Psychology · 1971 · 5.4K citations

Social Sciences, Psychology, Social Psychology +17

Pictures of Facial Affect

Paul Ekman · Medical Entomology and Zoology · 1976 · 4.3K citations

Social Sciences, Behavioral Sciences, Psychology +11

The Repertoire of Nonverbal Behavior: Categories, Origins, Usage, and Coding

Paul Ekman, Wallace V. Friesen · Semiotica · 1969 · 3.3K citations

Social Sciences, Communication, Social Psychology +12

Universals and cultural differences in facial expressions of emotion.

Paul Ekman · Medical Entomology and Zoology · 1972 · 2.2K citations

Social Sciences, Psychology, Social Psychology +14

Pan-Cultural Elements in Facial Displays of Emotion

Paul Ekman, E. Richard Sorenson, Wallace V. Friesen · Science · 1969 · 1.8K citations

Social Sciences, Psychology, Social Psychology +17