Military Aircraft insignia dates to pre-World War I era, with France and Romania as the first two countries to have designated official military markings.

This book covers every country that I can think of, including a handful of little know countries like Transinistra and some major countries that over the years had multiple military air force insignia (like the US or the Regia Aeronautica).

Each country has a section devoted to the markings, the colors in the insignia and a small description of their aerial assets. In most cases there is a picture of an airframe showing the insignia. Countries like Spain, that had multiple insignia and even civil wars, the book covers the markings of both sides.

All the markings are printed in full color and most of the pictures of the airplanes are in color too (the only exception are period pictures that were originally taken in black and white).