Context:

Dominic explicitly recommends this book as 'brilliant' when discussing details about John Wilkes Booth, including the peephole in Lincoln's box at Ford's Theatre. He references this book multiple times throughout the episode for details about Booth's psychology and the assassination.

Context:

Referenced as 'this book that I've mentioned a few times, brilliant biography' when discussing Lincoln's character and personality. The speaker quotes Burlingame's assessment of Lincoln's rare combination of political skills and personal qualities.