剋裏斯托弗•彼得森，美國密歇根大學Arthur F.Thumau心理學教授，著名心理學傢，臨床心理學委員會前主席，全球100位最受歡迎的心理學傢之一，美國VIA性格研究中心學術部主任。他是積極心理學的創始人之一，並以其在樂觀、健康、幸福等領域的研究而享譽世界。2010年，彼得森博士榮獲密歇根大學最高教學榮譽奬——“青蘋果奬”。

彼得森齣生、成長於美國中西部，先後就讀於伊利諾宜州立大學、科羅拉多州立大學和賓夕法尼亞大學。1986年開始在密西根大學執教心理學，他在這所學校教授多門課程，包括心理學概論、心理病理學、心理學研究方法，當然還有積極心理學。其學生大約有20000名之多。他將其職業生涯的大部分時間用於抑鬱、絕望和道德敗壞等問題的研究上，幫助無數人改變生活。《積極心理學》是彼得森教授最新的代錶著作，此外，他還與人閤著瞭《性格優勢與美德》一書。

Positive psychology is the scientific study of what goes right in life, from birth to death and at all stops in between. It is a newly-christened approach within psychology that takes seriously the examination of that which makes life most worth living. Everyone's life has peaks and valleys, and positive psychology does not deny the valleys. Its signature premise is more nuanced, but nonetheless important: what is good about life is as genuine as what is bad and, therefore, deserves equal attention from psychologists. Positive psychology as an explicit perspective has existed only since 1998, but enough relevant theory and research now exist to fill a textbook suitable for a semester-long college course. A Primer in Positive Psychology is thoroughly grounded in scientific research and covers major topics of concern to the field: positive experiences such as pleasure and flow; positive traits such as character strengths, values, and talents; and the social institutions that enable these subjects as well as what recent research might contribute to this knowledge.Every chapter contains exercises that illustrate positive psychology, a glossary, suggestions of articles and books for further reading, and lists of films, websites, and popular songs that embody chapter themes. A comprehensive overview of positive psychology by one of the acknowledged leaders in the field, this textbook provides students with a thorough introduction to an important area of psychology.