If we’re so rich, why aren’t we happy?

Mihaly Csikszentmihalyi
(pronounced chick-sent-me-high-ee),
C.S. and D.J. Davidson Professor of Psychology and Management at The
Drucker School, Claremont Graduate University, is mainly known for his work in flow
in creativity. Csikszentmihalyi describes flow as:

being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you’re using your skills to the utmost.

According to The Monitor on Pschology

[Martin] Seligman describes Csikszentmihalyi as the world’s leading
researcher on a subject that is near and dear to his heart — positive psychology.
He says Csikszentmihalyi’s work on improving lives has been important in his
own effort to encourage psychologists to focus on building human strengths.
“He is the brains behind positive psychology, and I am the voice,” says
Seligman. Csikszentmihalyi is working with Seligman to engage young leading
psychologists to focus on prevention and building human strength.

Probably his most well know work is Flow
the psychology of optimal experience