In 1922 the Us Navy commissioned its first small experimental aircraft carrier. This was followed inte service by two much larger and capable carriers in 1927 with five more being built prior to the Japanese attack on Pearl Harbor including three large Yorktown class. To take the offensive against the Japanesse Navy, the American Congress funded by far the largest carrier building programme in history based on the Essex class, a larger version the pre-war Yorktown vessels. Compiled and written by Michael Green, this book contains superb images of all the different types of classes of carriers employed by the US Navy since 1922. These and its highly informative text and captions give the reader a broad overview of this fascinating subject.