1. Lewontin, R. C. The Genetic Basis of Evolutionary Change (Columbia Univ. Press, New York, 1974). Lewontin's treatment of the fundamental outstanding issues in evolutionary genetics is often more relevant today than it was 25 years ago. Particularly in his lament about the lack of a genotype-to-phenotype map, only now can we envisage providing the experimental data that will fill the gap raised in this classic book.
2. Waddington, C. H. The Strategy of the Genes: a Discussion of Some Aspects of Theoretical Biology (George Allen and Unwin Ltd, 1957).
3. Huxley, J. Evolution: The Modern Synthesis (Harper & Brothers, London, 1942).
4. Dobzhansky, Th. G. Genetics and the Origin of Species (Columbia Univ. Press, New York, 1937). This text, along with aspects of Fisher's The Genetical Theory of Natural Selection seven years earlier, provided the basis for the neoDarwinian synthesis.
5. Wright, S. Evolution and the Genetics of Populations (Chicago Univ. Press, Chicago, Illinois, 1968–1978).