This book is unnecessary. The author sets up a strawman that current historiography pits Washington and Jefferson in strong. consistent opposition. Instead, the author maintains, they were close buds until the 1790s when they had a falling out. He then tries to convince us just how close they were. But the evidence is unconvincing, no matter how often the author repeats himself and insists otherwise. Both were wealthy Virginians with large landholdings and slaves. Washington was head of the Continental Army; Jefferson, Governor of Virginia, the largest and most important colony/state. It's only natural their paths would cross, and they would have significant, respectful correspondence. OK, so they didn't hate each other. Nobody said they did. Washington would not have made Jefferson his Secretary of State if he couldn't get along with him.
Anyway, his entire thesis, even if it has much more validity than I have given it, could have been explored in a journal article rather than a book, for which there isn't sufficient material. Most of the book, then, is history and information only tangentially related to the two's relationship. I finished the book, because I can always hear the story of, say, the Compromise of 1790 (ie, Hamilton's fiscal policy for a Potomac location for the capital) one more time. But the book didn't add anything to my knowledge.
Moreover, 40 percent or more of the content has to do with either slavery or (to a lesser extent) Indians. The author's view is thoroughly anachronistic, applying the values of a 21st century university professor to 18th century landed gentry. The emphasis is totally out of proportion. It would be like a book on Eisenhower with the half the content on his attitudes regarding strictures against interracial marriage and whether he stayed at hotels that discouraged Jewish guests, both phenomena within my own lifetime. In the 1950s, both blacks and whites were overwhelmingly against interracial marriage and few raised eyebrows about Gentile-only hotels. It would be remarkable if Eisenhower felt differently (BTW, just an example, I have no idea what Eisenhower thought).
OK, yeah, slavery is different because instead of "All men are created equal" we're actually talking about "All men (not women) are created equal but some are more equal than others," which some say puts the lie to one of the war's underlying tenets. But abolitionism wasn't to become a significant movement for some years. Armies have invaded and taken over lands inhabited by supposedly inferior people for thousands of years. To needlessly emphasize again and again the hypocrisy of those who wanted freedom and equality but just for white men who took Indian land is beating a dead horse.
So, no, not worth reading, especially if you have some knowledge of the period.