AGRADECIMENTOSEscrever os agradecimentos de um trabalho científico é um ato extremamente gratificante, pois se trata, na verdade, de uma jornada nas lembranças dos inúmeros acontecimentos vividos até o momento. E nessa viagem mental, o maior desafio é identificar todas as pessoas que tiveram participação e exerceram uma generosa contribuição para que o trabalho fosse realizado com dedicação. Diante disso, seguimos para esse prazeroso desafio.Agradeço ao financiamento oferecido pelo CNPq. Pois graças a bolsa de mestrado pude me dedicar aos estudos. The current study aimed at identifying the happiness and meaningfulness attributed to different life domains by professionals of Education of the State of São Paulo. In order to do that, we clarified, through a bibliographical review, how happiness has been something of human interest over time. We emphasized that the concept of happiness differs according to language, culture and it has a plurality of associated terms in research. In a historical review, we have shown that happiness has been an ideal pursued since the earliest Western civilizations, received emphasis by the Greek philosophers, it has gone through the centuries, impacted the economy and the creation of its indexes in the last decades and it currently led to debate in the field of psychology. From this point, we approached the Positive Psychology movement, its origins, proposals, evolution in the national scenario, initial misconceptions and the unfolding of the well-being construct. As these studies advanced, two conceptions stand out: Subjective Well-Being and Psychological Well-Being, based on the philosophical concepts of hedonia and eudaimonia. In this sense, we presented the emerging proposals that set out an approximation between these philosophical lines and a theoretical-methodological articulation that offers a complex perspective on happiness. By means of a theme review on happiness and an understanding of its articulation with the conceptions of hedonia and eudaimonia, this study proposes evaluating the levels of happiness and meaningfulness in different life domains, which were ranked by professionals of the State of São Paulo. To this end, we used a sample of 2.021 individuals between the ages of twenty and seventy, who participated in the selection process for the Specialization Course in Ethics, Values and Citizenship in School conducted by the University of São Paulo. The instrument used was the Eudaimonic Hedonic Happiness Inventory (EHHI), devised by open questions and scales for assessing the level of happiness and meaning in eleven different life domains. The data were collected in person in the cities of São Paulo, São Carlos, Ribeirão Preto and Campinas in August 2013. The results showed that family, health and personal growth are the life domains with more evidence of happiness and meaningfulness. It was also possible to perceive that teachers who were at the end of their careers are happier and younger ones have less meaning in life. Finally, the results of meaningfulness prese...