Before leaving for E3, I had the chance to finish Doris Kearn Goodwin's Team of Rivals: The Political Genius of Abraham Lincoln, and quite enjoyed it, despite a couple flaws.
The main complaint I have about the book is that in gushing praise upon Lincoln, it fails to make any criticism of him. Even while talking about his failed calls in selecting some of the leadership of his military leaders, it apologizes on his behalf. The book also gives disproportionate weight to some things in his life versus what must have been the heaviest at the time (e.g. social functions and the like, compared to war campaign decisions).
This critique aside, the book is still a good read and a good crash course and inside peek on a great leader in action.