Are We Free? Psychology and Free Will by J. Baer, J.C. Kaufman and R.F. Baumeister, eds. (2008)

Constructing the Self, Constructing America: A Cultural History of Psychotherapy by Philip Cushman (1996)

The Psychology of Gratitude by Robert Emmons (2004)

The Psychology of Ultimate Concerns: Motivation and Spirituality in Personality by Robert Emmons (2003)

Psychology and the Question of Agency by Jack Martin, Jeff Sugarman and Janice Thompson (2003)

Character Strengths and Virtues by Christopher Peterson and Martin Seligman (2004)