In this astonishing and illuminating book, Joshua Wolf Shenk reveals the deep melancholy that pervaded Abraham Lincoln's life and its influence on his mature character. Mired in personal suffering as a young man, Lincoln forged a hard path toward mental health. His coping strategies and depressive insight ultimately helped the sixteenth president find the strength that he, and America, needed to overcome the nation's greatest turmoil. Drawing on seven years of research, Shenk offers a nuanced, revelatory perspective on Lincoln and his legacy.