Detail and Scale originally released B-24 Liberator in Detail and Scale in 2000. In the twenty-three years that have passed, many more colour photographs have become available that better illustrate what is one of the most iconic and important aircraft in aviation history. Printing processes have been improved, permitting colour to be included anywhere throughout the publication at a reasonable price, and digital technology has made new electronic formats possible with their significant advantages. This updated and expanded volume includes numerous new photographs and additional information covering the B-24 and PB4Y-1 Liberators and their closely-related cousin, the PB4Y-2 Privateer. Along with Boeing’s B-17 Flying Fortress, Consolidated’s B-24 Liberator was one of the first two U. S. strategic bombers to be designed and put into large scale production. Both were excellent aircraft, and both were used in significant numbers in every theatre of World War II. Both were essential in achieving the ultimate victory over the Axis powers. Because the B-17 was used more extensively in Europe, where the majority of the media covered the war, the Flying Fortress received more attention and got more publicity than the Liberator, so the B-17 became better known to the public. But when the two bombers are compared to each other, the B-24 was the superior aircraft in several important categories. It could carry a heavier load over a greater range than the B-17, and it was used more extensively from a geographical point of view. It was also built in greater numbers than the Flying Fortress. In fact, production of B-24s, including all variants, totalled 18,188 aircraft. This is the largest number of any American aircraft of any type ever built, a record that will undoubtedly stand forever. The B-24 was also one of the most modified aircraft ever built for the U. S. military. Including the Navy’s PB4Y-2 Privateer, no less than ten different versions were produced, and most of these had numerous variations depending on where they were built and how they were modified in the field. Yet, except for the Privateer, the sound basic design of the aircraft remained essentially unchanged throughout.