A fascinating anthology which sheds new light on the Bletchley Park story and shows that there is still more to tell.' - Tony Comer OBE, formerly Departmental Historian at GCHQ This important volume tells the story of Bletchley Park through countless letters written by key players to former colleagues and loved ones as the war unfolded. Having intercepted millions of German communications, the codebreakers had felt bound by the Official Secrets Act and said little about their wartime activities. Some who had stayed on at GCHQ after the war, were concerned that speaking out could jeopardise their pensions.Over one hundred letters have been included in this volume and have either been recovered from family members or declassified by GCHQ. They reveal fresh information about the clandestine operation and disclose the true feelings of the participants at Bletchley.Park. In contrast to early accounts, which lacked detail and were occasionally inaccurate, this book thoroughly lays bare the day-to-day experiences at Bletchley Park and uncovers the operational and technical reasons behind the organisation's successes and failures. Simultaneously intimate and comprehensive, it will interest historians, World War II researchers, and anyone who wants to learn the secrets of Britain's signal intelligence effort.

The extraordinary untold story of the brilliant men who cracked the Japanese codes from Australia during World War II. At the height of World War II in the Pacific, two secret organisations existed in Australia to break Japan's military codes. They were peopled by brilliant and idiosyncratic cryptographers, including some with achievements in mathematics and the Classics and others who had lived or grown up in Japan. These men patiently and carefully unravelled the codes in Japanese signals, ultimately playing a crucial role in the battles of Midway and the Coral Sea, as well as Macarthur's push into the Philippines. An intercept station in the Queensland bush brought about the end of Admiral Yamamoto. But this is more than a story of codes. It is an extraordinary exploration of a unique group of men and their intense personal rivalries and loathing, of white-anting and taking credit for others' achievements. It is also the story of a fierce inter-national and inter-service political battle for control of war-changing intelligence between a group of cryptographers based at the Monterey apartment block in Melbourne's Albert Park and General MacArthur's counter group that eventually established its headquarters in suburban Brisbane. What happened between these two groups would have consequences for intelligence services in the years to follow. Code Breakers brings this surprising and very secret world and the men who operated in it to rich life for the first time.

Organising for a successful future as if people mattered - an examination of the principles and practices of the best organisations.

Learn the essentials of computer science Schaum’s Outline of Principles of Computer Science provides aconcise overview of the theoretical foundation of computerscience. It also includes focused review of object-oriented programming using Java.

A look inside the secret world of the American intelligence establishment and its link to the global eavesdropping network "Echelon" assesses how much privacy Americans have unwittingly sacrificed in favor of national security.