In the Garden of Beasts: Love, Terror, and an American Family in Hitler's Berlin is a 2011 non-fiction book by Erik Larson.

[1] Larson recounts the career of the American ambassador to Germany, William Dodd, particularly the years 1933 to 1937 when he and his family, including his daughter Martha, lived in Berlin.

The ambassador, who had earned his PhD in Leipzig forty years earlier, and who, at the time of his appointment, was head of the History Department at the University of Chicago, initially hoped that Germany's new Nazi government would grow more moderate, including in its persecution of the Jews.

[2] Martha, separated from her husband and in the process of divorce, became caught up in the glamor and excitement of Berlin's social scene and had a series of liaisons, most of them sexual, including among them Gestapo head Rudolf Diels and Soviet attaché and secret agent Boris Vinogradov.

President Roosevelt was pleased with Dodd's performance while most State Department officials, suspicious of his lack of background in their area of expertise, as well as his inability to finance embassy activities from his own wealth, found him undiplomatic and idiosyncratic.