This volume of the series tells the histories of the development of the P-40, P-47, and P-47 fighters. Each one also has a section on technology, this one covers the development of their guns, called "Tools of the Trade". They also present other events and tales of the period. Volume II has "Donald Duck & the Nazis", a story of the "Government Girl", and more.
With the coverage given the P-51 and P-38 and P-47, the P-40 is always obscured, implying it was inferior to the point of being obsolete even as it was deployed. This history gives a much more factual presentation of the P-40's place in its contributions to a nation that slept far too long in hoping isolation would mean protection.