book review: Why Youth Is Not Wasted On The Young Bjorkland,David,F. Blackwell,Oxford 2007,ix + 276 pp. ISBN 978 1 4051 4951 8,£50 (hbk);ISBN 978 1 4051 4952 5,£17.99 (pbk)

Chisholm, J.S. (1999) Death, Hope and Sex: Steps to an Evolutionary Ecology of Mind and Morality. Cambridge: Cambridge University Press.

Pinker, S. (1994) The Language Instinct. Harmonsworth : Allen Lane.

Smith, P.K. (1986) Children's Play: Research Developments and Practical Applications. New York: Gordon and Breach.