Anyone trying to understand heritability, or other aspects of quantitative genetics, is likely to rely heavily on D. S. Falconer's Introduction to Quantitative Genetics. I find that Falconer died a few years ago, and there is a fine Obituary by W. G. Hill available here. I love this anecdote from Falconer about D'Arcy Thompson:

I asked him at the beginning for recommendations as to what to read and he said 'Just browse, my boy, just browse.' So I worked away on my own ... and at the end of the year he came along to me and said 'Well, Douglas, my boy, you're a very good lad and I don't think we need give you an examination this year.'

They don't make them like that any more.