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For most of its history, psychology has focused mainly on the darker side of human behaviour – depression, anxiety, psychosis and psychopathic behaviour. In 1998, Martin Seligman became president of the American Psychological Association and inspired a movement to focus on the positives in human behaviour.
- Book Cover Type: Paperback
- ISBN : 9789647114851
- Language(s) : Persian (Farsi)
- Persian Title: کتاب روان شناسی مثبت اثر آوریل لیمن