Cynthia Grabo’s original Handbook of Warning Intelligence, written in the aftermath of the Soviet/Warsaw Pact invasion of Czechoslovakia has, at long last, been fully declassified. The hitherto secret Part III of her study is now accessible for a public readership in this definitive volume. Professionals, scholars of Intelligence and Security Studies, students of International Affairs, and readers sharing an interest in Conflict and Crisis Management generally will all gain valuable historical and analytical insights from this most valuable—and greatly valued—manual.The focal points on the hitherto classified Part III are on intelligence analysis relating to particular types of warfare, and the provision of relevant, actionable warning intelligence to policy makers. Although the original time frame of the Handbook preceded the contemporary threat of Militant Jihadism, Cynthia Grabo’s risk assessments should provide important insights into current, all the more complex intelligence challenges facing analysts and policy makers. The issues addressed in the concluding chapters dealing with the making of analytical judgments regarding imminent threats, and with conveying these threat warnings upwards to managers and policy maker, are all the more telling and pertinent in today’s very volatile global security environment. This is a “need to know” Handbook of Warning Intelligence, a Complete and Declassified Work of Cynthina Grabo.