'The Selfish Gene' is a classic exposition of evolutionary thought. In it Professor Dawkins articulates a gene's eye view of evolution-- a view giving centre stage to these persistent units of information, and in which organisms can be seen as vehicles for the replication of genes. The book provoked widespread and heated debate, which in part led Dawkins to write 'The Extended Phenotype', in which he gave a deeper clarification of the central concept of the gene as the unit of selection, as well as contributing his own development of this insight. 'The Extended Selfish Gene' brings these two books together, by including two key chapters from 'The Extended Phenotype. '