Antzeko izenburuak: Happiness, stability and transcendence in western religion, philosophy and poetry /
- Vivir con felicidad
- A literary, philosophical and religious journey into well-being : fulfilled lives /
- Happiness or its absence in art /
- Conceiving God : perversions and brainstorms : a thesis on the origins of human religiosity /
- The Joy of Duty : Human Happiness and Ethical Obligation /
- Journal of happiness studies