What is the author's tone in the biography, Grant?

Consistent with his perspective, Chernow often writes with a tone critical of the accepted wisdom on Grant’s reputation and legacy. He never attacks specific accounts of Grant’s behavior, except for contemporary ones that he judges to be wholly inaccurate, but does suggest that the historical community as a whole has grossly mischaracterized Grant. An example of this occurs at the beginning of Chapter 34, where Chernow quotes long passages written by Grant’s associates testifying to his honesty and upright nature. These quotes provide little new information, but, rather, reinforce arguments and evidence already introduced. Instead, their primary effect is on the tone of the text. During this and other passages, it reflects the deep respect and affection that Grant’s friends had for him. By adopting this more personal tone, the author encourages the reader to view Grant sympathetically.