Professor Jamison has put together a compelling case for the link between Manic-Depressive Illness and creativity in authors, artists and composers. Based on the words of the persons themselves, their biographers and their doctors. She also shows that it is a genetic illness.
My favourite part: the chapter on Lord Byron is very compelling, as is the following chapter on various other creative personalities.
Critic: Professor Jamison did not discuss the interplay between genetics and environmental factors. E.g. to what extent is the illness influenced by upbringing (e.g. the home environment) - if your grandfather committed suicide & your father committed suicide, how likely are you to do the same even if it is not a genetic pre-disposition? Interestingly however, Lord Byron never saw his daughter Ada beyond her first birthday - yet she grew up (with a sane mother) with some of her father's tendencies (although she was not diagnosed with the illness nor hospitalised).