This felt like half a book. I enjoyed all the details she included on Lincoln, but it made the chapters on Garfield and McKinley seem even weaker in comparison. Her coverage of Kennedy was also anemic, despite the wealth of information available.

I also would have enjoyed a little information about the failed assassination attempts presidents have survived. She did touch on a few of those, but only a sentence here or there.

I feel like I learned as much about the author as I did about the presidents, but that's not what I was looking for.