Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Deep and informative portrayal

When I started this book and saw the author's objective, I expected a long slog through five biographies in one. What I got was a marvelous read, illustrating more clearly than typical biographies do the genius of Lincoln, balancing the opposing factions of his party and the opposing characters of the talented men he chose for his political family. I came away with a deeper appreciation of what Lincoln accomplished as well as an understanding of some contemporary scoundrels: Chase, McClellan, Fremont. Truly a deep and informative portrayal of all these men, and better insight than I have seen into the women who supported them.