Diener, E., Lucas, R.E., & Schimmack, U. (2008). National Accounts of Well-Being. Oxford, UK: Oxford University Press.

Presents the case for national measures of subjective well-being to be used for policy purposes.

Diener, E., & Biswas-Diener, R. (2008). The science of optimal happiness. Boston: Blackwell Publishing

Popular book on the science of happiness.