Hadot, P. 1995. Philosophy as a way of life: Spiritual exercises from Socrates to Foucault, ed. Arnold Davidson. Malden, MA: Wiley-Blackwell.
Evans, J. 2017. The art of losing control: A philosopher’s search for ecstatic experience. Edinburgh: Canongate.
Roof, WC. 1999. Spiritual marketplace: Baby boomers and the remaking of American religion. Princeton, NJ: Princeton University Press.
Taylor, CT. 2007. A secular age. Cambridge, MA: Belknap Press.
Chase, M, Clark, SRL, Mc-Ghee, M, eds. 2013. Philosophy as a way of life: Ancients and moderns: Essays in honor of Pierre Hadot. Chichester, West Sussex: Wiley-Blackwell.
McPherson, D, ed. 2017. Spirituality and the good life: Philosophical approaches. New York: Cambridge University Press.
Cottingham, J. 2005. The spiritual dimension: Religion, philosophy and human value. New York: Cambridge University Press.