Positive psychology investigates the positive aspects of human life. Positive psychologists contend that it is difficult to understand the factors that create health, balance and meaningful lives through studying sickness, dissatisfaction and suffering. Accordingly, positive psychology represents a turn for a more positive approach to psychology. The ideas of positive psychology are also applicable within the sphere of work and organisational psychology. It is a central contention of this report that positive psychology may provide interesting answers to some of the challenges that are confronting the Nordic welfare states in the years ahead. The aim of this report is to give a theoretical and methodological overview of existing Nordic research about positive factors at work. The report contains a series of operationalised concepts that measure positive factors at work. These measures of positive factors at work are brought together in a theoretical model that the authors of this report will use as a starting point for further research into positive psychology at work in a Nordic context. This research has been funded by the Nordic Council of Ministers.