A groundbreaking work of Australian military history, The Code-Breakers of Central Bureau tells the story of the country's significant code-breaking and signals-intelligence achievements during the Second World War. It reveals how Australians built a large and sophisticated intelligence network from scratch, how Australian code-breakers cracked Japanese army and air force codes, and how the code-breakers played a vital role in the battles of Midway, Milne Bay, the Coral Sea, Hollandia, and Leyte.

The book also reveals Australian involvement in the shooting down of Admiral Yamamoto near Bougainville in 1943, and how on 14 August 1945, following Japan's offer of surrender, an Australian intelligence officer established the Allies' first direct radio contact with Japan since the war had begun.

This is a rich historical account of a secret and little-understood side of the war, interwoven with lively personalities and personal stories. It is the story of Australia's version of Bletchley Park, of talented and dedicated individuals who significantly influenced the course of the Pacific War.