... for a layman
I'd really like to get some overview of the current state of knowledge re DNA, heritability etc. I don't have the background to dive straight into specialist technical sources, but am prepared to work as hard as I can to get to grips with it. Could anyone recommend a good introductory text?
I'm particularly interested in the nature side of the nature/nurture debate. Am aware of much of the research and thought from the other side - problems with IQ tests, plasticity of the brain, influence of culture etc. etc. But I'd like to have a better idea what hard science is known about genetic influences on talents, disorders etc.
[Note: not looking for a debate about this here. Just for pointers to information about one side of the question.]