Take realism, for instance: study after study has shown that those suffering depression are better than "normal" people at assessing current threats and predicting future outcomes. Looking at Lincoln and Churchill among others, Ghaemi shows how depressive realism helped these men tackle challenges both personal and national. Or consider creativity, a quality psychiatrists have studied extensively in relation to bipolar disorder. A First-Rate Madness shows how mania inspired General Sherman and Ted Turner to design and execute their most creative-and successful-strategies.