Bryan Burrough started the research on this book when he realized that Dillinger, Bonnie and Clyde, the Ma Barker Gang and other high profile kidnappers and bank robbers operated at the same time—1933-34. And they were being tracked down by the newly emerging FBI under J. Edgar Hoover. The FBI files were being made public and Burroughs was able to track down unpublished manuscripts from some of the participants and he also relied on the research of other authors who had interviewed survivors.
This is a very detailed story of the movements and crimes of the “public enemies” and the FBI team following them. It is told mostly chronologically. There are so many people involved that it is often difficult to follow who they are.
But Burroughs describes the main events so well that I found myself tearing through sections as if this was a crime novel where I didn’t know the outcome.

Left in the Little Free Library