The Pursuit of Happiness: Between Prosperity and Adversity looks at activities, practices, and experiences that are instrumental in changing one’s level of well-being. This book focuses on the situations in which well-being is challenged, or even decreased, and explores, guided by Dialogical Self Theory, pathways that lead to its elevation. Research has suggested that there are three main determinants of well-being: genetic factors, one’s individual’s history, and happiness-relevant activities. The third and most promising means of altering one’s happiness level are activities and practices that require some degree of effort. A surprising finding is that these personal efforts may have a happiness-boosting potential that is almost as large as the probable role of genetics, and apparently larger than the influence of one’s individual history. Efforts are invested in fields of tension between prosperity and adversity. The Pursuit of Happiness covers a variety of topics, such as finding happiness and well-being in the face of extreme adversity, the role of honesty in genuine happiness, the promise of minimalistic life orientations, the value of inner silence, evaluating our lives from a future perspective, and the relationship between happiness, career development, counselling, and psychotherapy. This book was originally published as a special issue of the British Journal of Guidance & Counselling.