From the excerpt I have read of  Lincoln’s Boys: John Hay, John Nicolay, and the War for Lincoln’s Image by Joshua Zeitz in the Smithsonian Magazine it certainly seems like it could be a good book.  More likely a book for people who have a fondness for history and in this case Abraham Lincoln. The excerpt below gives a little taste of it.

It is little wonder that historians consult Hay’s and Nicolay’s writing frequently—their letters and journals provide eyewitness accounts of their White House years. But their major life’s work after the Civil War is a largely forgotten story.

“The boys,” as the president affectionately called them, became Lincoln’s official biographers. Enjoying exclusive access to his papers—which the Lincoln family closed to the public until 1947 (the 21st anniversary of the death of Robert Todd Lincoln)— they undertook a 25-year mission to create a definitive and enduring historical image of their slain leader. The culmination of these efforts—their exhaustive, ten-volume biography, serialized between 1886 and 1890—constituted one of the most successful exercises in revisionism in American history. Writing against the rising currents of Southern apologia, Hay and Nicolay pioneered the “Northern” interpretation of the Civil War—a standard against which every other historian and polemicist had to stake out a position.

via The History of How We Came to Revere Abraham Lincoln | History | Smithsonian.

I think I am likely to get a copy of this when it comes out, but will see.  If you get enjoyment out of learning about history this certainly seems like a book worth checking out.