Adrian Desmond & James R Moore 
Darwin 

This biography of Charles Darwin attempts to capture the private unknown life of the real man – the gambling and gluttony at Cambridge, his gruelling trip round the globe, his intimate family life, worries about persecution and thoughts about God. Central to all of this, his pioneering efforts on the theory of evolution now that recent studies have overturned the commonplace views of Darwin that have held for more than a century.