Introduction Part 1: Gratitude and Flourishing: Psychology and Morality 1. Gratitude's value 2. Exploring how gratitude trains cognitive processes important to well-being 3. The freedom to feel grateful: The view from classical antiquity Part 2: Gratitude and related concepts 4. Humility and gratitude 5. The construct of appreciation: It is so much more than gratitude 6. Are Gratitude and Forgiveness Symmetrical? Part 3. Problems about gratitude 7. Gratitude to the decent rescuer 8. Gratitude toward things 9. Gratitude: The dark side Part 4. Spiritual and religious dimensions of gratitude 10. Is gratitude queen of the virtues and ingratitude king of the vices? 11. A psychological perspective on gratitude and religion 12. Counting blessings: Towards a spiritual conception of gratitude Part 5. Gratitude interventions in education and research 11. Promoting the development of gratitude to build character and improve society 14. An empirical exploration of the normative dimensions of gratitude 15. The State of psychological research into gratitude and the need for more interdisciplinary collaboration Conclusion. Gratitude: An educational postscript.