The writing is excellent, but what I really enjoyed about this book was discovering the dedication Robert Caro has to his craft. His curiosity and willingness to do the work comes out -- from his commitment to research, to his compassion to tell well-rounded stories. The book doesn't really cover nuts-and-bolts of how to write, but dives deeper into motivation and passion and what it takes to write a complete story, and not being scared of doing the work, asking questions, or as Caro tells it "turn every page".