100 books like Threat on the Horizon

By Loch K. Johnson,

Here are 100 books that Threat on the Horizon fans have personally recommended if you like Threat on the Horizon. Shepherd is a community of 10,000+ authors and super readers sharing their favorite books with the world.

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Book cover of The Secret World: A History of Intelligence

Duncan Falconer Author Of First into Action

From my list on providing a unique insight into military history.

Why am I passionate about this?

I must be something of a specialist on the impact of conventional and guerrilla warfare on the civilian population. Truth is, leaving school, I never intended to have anything to do with war beyond the books I enjoyed reading. On leaving the military in my 30s I employed the only skills I had and managed organisations and mostly news teams operating in conflict zones all over the world. I matured into a crisis manager, responding and consulting to crisis situations such as kidnap & ransoms, and evacuations from conflict zones. Most of the characters in my books are real, good and bad, taken from the vast theatre of my own experiences. 

Duncan's book list on providing a unique insight into military history

Duncan Falconer Why did Duncan love this book?

My line of work has only enhanced my fascination with spies and spying. Espionage was on the periphery of my world and I was privy, on occasion, to snippets of information that shed light on certain events. Reading this book was like being privy to a host of secrets, many during my own era. How fascinating to be taken through the history of espionage from biblical times until today. The author reveals missing pieces to many significant moments in history, where monumental decisions were made based on information bought and sold, died for, killed for, stolen, or extracted by torture or coercion. Equally fascinating is how so much of that information was misinterpreted, denied, ignored, inflated, or simply misplaced. Great battles were won and lost, kingdoms toppled, fortunes spent and made, often based on a single snippet of information.

By Christopher Andrew,

Why should I read it?

3 authors picked The Secret World as one of their favorite books, and they share why you should read it.

What is this book about?

'Almost every page includes a sizzling historical titbit ... captivating, insightful and masterly' (Edward Lucas, The Times)

The history of espionage is far older than any of today's intelligence agencies, yet the long history of intelligence operations has been largely forgotten. The first mention of espionage in world literature is in the Book of Exodus.'God sent out spies into the land of Canaan'. From there, Christopher Andrew traces the shift in the ancient world from divination to what we would recognize as attempts to gather real intelligence in the conduct of military operations, and considers how far ahead of the…


Book cover of The Black Door: Spies, Secret Intelligence and British Prime Ministers

David P. Oakley Author Of Subordinating Intelligence: The DoD/CIA Post-Cold War Relationship

From my list on history, personalities, activities of intelligence.

Why am I passionate about this?

My fascination with intelligence studies is tied to my previous experience as a practitioner. While serving as a military officer and CIA officer, I became curious about how two organizations with a shared history could be so different. Exploring the “why” of the CIA/DoD differences led me to the broader interplay of organizational cultures, individuals, and missions in influencing the evolution of intelligence, its purpose, and its role. These five books will provide the reader a broader appreciation of how intelligence was used to help policymakers understand reality and how intelligence organizations have been used to try to change reality. You will not merely learn something about intelligence but will be entertained and engaged while doing so. 

David's book list on history, personalities, activities of intelligence

David P. Oakley Why did David love this book?

I am fascinated by how different countries approach intelligence, both from how they organize intelligence activities and how intelligence informs policymaking. These various approaches highlight there is not a common approach to intelligence and help explain why simple definitions of intelligence are insufficient at capturing various intelligence activities and organizations. The Black Door looks at how British Prime Ministers have used intelligence and their relationships with intelligence organizations over the past century. A well-written account by two thoughtful and prolific scholars, the reader will appreciate how British Prime Ministers have used intelligence to not only understand the world but to also act.  

By Richard J. Aldrich, Rory Cormac,

Why should I read it?

1 author picked The Black Door as one of their favorite books, and they share why you should read it.

What is this book about?

The Black Door explores the evolving relationship between successive British prime ministers and the intelligence agencies, from Asquith's Secret Service Bureau to Cameron's National Security Council.

Intelligence can do a prime minister's dirty work. For more than a century, secret wars have been waged directly from Number 10. They have staved off conflict, defeats and British decline through fancy footwork, often deceiving friend and foe alike. Yet as the birth of the modern British secret service in 1909, prime ministers were strangers to the secret world - sometimes with disastrous consequences. During the Second World War, Winston Churchill oversaw a…


Book cover of Spy Chiefs: Volume 1: Intelligence Leaders in the United States and United Kingdom

David P. Oakley Author Of Subordinating Intelligence: The DoD/CIA Post-Cold War Relationship

From my list on history, personalities, activities of intelligence.

Why am I passionate about this?

My fascination with intelligence studies is tied to my previous experience as a practitioner. While serving as a military officer and CIA officer, I became curious about how two organizations with a shared history could be so different. Exploring the “why” of the CIA/DoD differences led me to the broader interplay of organizational cultures, individuals, and missions in influencing the evolution of intelligence, its purpose, and its role. These five books will provide the reader a broader appreciation of how intelligence was used to help policymakers understand reality and how intelligence organizations have been used to try to change reality. You will not merely learn something about intelligence but will be entertained and engaged while doing so. 

David's book list on history, personalities, activities of intelligence

David P. Oakley Why did David love this book?

I think it is important to consider how leaders shape organizations and how the evolution of an organization might have been different under another person. To appreciate how/why intelligence organizations evolved we must appreciate the influence of intelligence leaders. For example, John Deutch and Stanfield Turner not only created tension within the CIA during their tenure, but their poor decisions affected the organization long after their departure. This edited volume looks at the personalities of U.S. and U.K. intelligence leaders and their influence on intelligence. Although the book touches on some of the more familiar names such as Wild Bill Donovan, its authors also explore lesser-known leaders whose influence on their organization and the broader community was significant. A must-read for anyone wanting to appreciate how individuals shape intelligence! I also encourage you to pick up volume 2 to learn about intelligence leaders throughout the world.

By Christopher Moran (editor), Mark Stout (editor), Ioanna Iordanou (editor) , Paul Maddrell (editor)

Why should I read it?

1 author picked Spy Chiefs as one of their favorite books, and they share why you should read it.

What is this book about?

In literature and film the spy chief is an all-knowing, all-powerful figure who masterfully moves spies into action like pieces on a chessboard. How close to reality is that depiction, and what does it really take to be an effective leader in the world of intelligence? This first volume of Spy Chiefs broadens and deepens our understanding of the role of intelligence leaders in foreign affairs and national security in the United States and United Kingdom from the early 1940s to the present. The figures profiled range from famous spy chiefs such as William Donovan, Richard Helms, and Stewart Menzies…


Book cover of Statecraft by Stealth: Secret Intelligence and British Rule in Palestine

David P. Oakley Author Of Subordinating Intelligence: The DoD/CIA Post-Cold War Relationship

From my list on history, personalities, activities of intelligence.

Why am I passionate about this?

My fascination with intelligence studies is tied to my previous experience as a practitioner. While serving as a military officer and CIA officer, I became curious about how two organizations with a shared history could be so different. Exploring the “why” of the CIA/DoD differences led me to the broader interplay of organizational cultures, individuals, and missions in influencing the evolution of intelligence, its purpose, and its role. These five books will provide the reader a broader appreciation of how intelligence was used to help policymakers understand reality and how intelligence organizations have been used to try to change reality. You will not merely learn something about intelligence but will be entertained and engaged while doing so. 

David's book list on history, personalities, activities of intelligence

David P. Oakley Why did David love this book?

The relationship between intelligence and policy and how various countries employ intelligence organizations are two important topics that are not fully explored. Wagner’s book looks at the role played by British intelligence in Palestine during the interwar period---a role that went beyond what many consider intelligence functions. As Wagner explains, British intelligence not only informed policymakers’ thinking but was also involved in the execution of policy in the Palestinian territory during this period. This combined, no better yet intertwined, history of British policy and intelligence during this important period is something that intelligence and regional scholars should read. 

By Steven B. Wagner,

Why should I read it?

1 author picked Statecraft by Stealth as one of their favorite books, and they share why you should read it.

What is this book about?

Britain relied upon secret intelligence operations to rule Mandatory Palestine. Statecraft by Stealth sheds light on a time in history when the murky triad of intelligence, policy, and security supported colonial governance. It emphasizes the role of the Anglo-Zionist partnership, which began during World War I and ended in 1939, when Britain imposed severe limits on Jewish immigration and settlement in Palestine.

Steven Wagner argues that although the British devoted considerable attention to intelligence gathering and analysis, they never managed to solve the basic contradiction of their rule: a dual commitment to democratic self-government and to the Jewish national home…


Book cover of Blind Over Cuba: The Photo Gap and the Missile Crisis

Sheldon M. Stern Author Of The Week the World Stood Still: Inside the Secret Cuban Missile Crisis

From my list on Cuban Missile Crisis.

Why am I passionate about this?

In early 1981, the JFK Library began the process of declassifying the Cuban missile crisis ExComm tapes; as the Library’s Historian, the responsibility for reviewing these recordings was mine—and it changed my life. I spent most of the next two years listening to the tapes from the legendary 13 Days (and subsequently from the November “post-crisis”). I was the first non-ExComm participant and professional historian to hear and evaluate these unique and definitive historical recordings. After the tapes were declassified in the late 1990s, I wrote three books (published by Stanford University Press) about their historical importance.

Sheldon's book list on Cuban Missile Crisis

Sheldon M. Stern Why did Sheldon love this book?

In 1960, a planned summit meeting in Paris between the US, the USSR, England, and France was suddenly jeopardized when an American U-2 spy plane was shot down over Russia and the pilot captured. Khrushchev demanded an end to the flights and an apology. President Eisenhower agreed to suspend flights until the end of his term (nine months later), but the Soviet leader angrily denounced the offer and returned to Moscow. Ironically, President Kennedy’s concern in 1962 about “another U-2 crisis” convinced him to suspend U-2 flights over Cuba—a pause that lasted from late August to early October. JFK did agree to authorize one flight over western Cuba in response to pressure from CIA director John McCone—and the missiles were luckily discovered just before they had become operational.

By David M. Barrett, Max Holland,

Why should I read it?

1 author picked Blind Over Cuba as one of their favorite books, and they share why you should read it.

What is this book about?

In the aftermath of the Cuban Missile Crisis, questions persisted about how the potential cataclysm had been allowed to develop. A subsequent congressional investigation focused on what came to be known as the "photo gap": five weeks during which intelligence-gathering flights over Cuba had been attenuated.

In Blind over Cuba, David M. Barrett and Max Holland challenge the popular perception of the Kennedy administration's handling of the Soviet Union's surreptitious deployment of missiles in the Western Hemisphere. Rather than epitomizing it as a masterpiece of crisis management by policy makers and the administration, Barrett and Holland make the case that…


Book cover of The Peacemaker: Ronald Reagan, the Cold War, and the World on the Brink

Mark G. Pomar Author Of Cold War Radio: The Russian Broadcasts of the Voice of America and Radio Free Europe/Radio Liberty

From my list on critical world events from a new angle.

Why am I passionate about this?

Since I read George Kennan’s award-winning memoirs when I was still in high school, I have been fascinated by world history in general and specifically by the Soviet Union (Russia) and Central/Eastern Europe. I have a PhD in Russian studies and my 40+ year career has included academia, government, non-profit organizations, and the foundation sector. My professional experience has reinforced my belief that to understand today’s world and to formulate effective national security strategy one must study the roots of political, economic, or social events.   

Mark's book list on critical world events from a new angle

Mark G. Pomar Why did Mark love this book?

In The Peacemaker, William Inboden draws on declassified materials, interviews with high-level government officials, and on Reagan’s personal diary to write the most thorough, fair, and scrupulously researched account of Reagan’s foreign policy and the successful end of the Cold War.

And he does this with such aplomb that his history reads like a novel. I worked in the US government in the 1980s and thought I knew Reagan’s foreign policy well, but I discovered much that was new and couldn’t put the book down.

By William Inboden,

Why should I read it?

1 author picked The Peacemaker as one of their favorite books, and they share why you should read it.

What is this book about?

One of the Wall Street Journal’sbest political books of 2022

A masterful account of how Ronald Reagan and his national security team confronted the Soviets, reduced the nuclear threat, won the Cold War, and supported the spread of freedom around the world.

“Remarkable… a great read.”—Robert Gates • “Mesmerizing… hard to put down.”—Paul Kennedy • “Full of fresh information… will shape all future studies of the role the United States played in ending the Cold War.”—John Lewis Gaddis • “A major contribution to our understanding of the Reagan presidency and the twilight of the Cold War era.”—David Kennedy

With decades…


Book cover of Strangers and Brothers

Robin Hawdon Author Of Number Ten

From my list on lone heroes and threats to national security.

Why am I passionate about this?

My writing is eclectic and covers many topics. However, all my books tend to have a thriller element to them. Perhaps it's my career as an actor and playwright which has instilled the need to create suspense in all my writings. I sometimes feel that distinguished authors can get so carried away with their literary descriptions and philosophical insights that they forget to keep the story going! It is the need to know what happens next that keeps the reader turning the pages. Perhaps in achieving that some subtlety has to be sacrificed, but, hey, you don't read a political thriller to study the philosophical problems of governing nations!

Robin's book list on lone heroes and threats to national security

Robin Hawdon Why did Robin love this book?

This is an almost forgotten series of books which had a huge impact back in the 1950s and 60s, depicting as they did in fictional form the inside story of politics, science, and academia in Britain at the time. Snow was himself a distinguished chemist and academic, who often acted as an advisor to the UK government. He used his experience and inside knowledge of the corridors of power (a phrase which he coined) to brilliant effect in his novels. Again, as with the previous authors I have mentioned, it is that detail that comes with direct experience of the subject matter, and the personalities involved, which renders the writing authentic and captivates the reader.

By C.P. Snow,

Why should I read it?

1 author picked Strangers and Brothers as one of their favorite books, and they share why you should read it.

What is this book about?

Contains: The Masters, The New Men, Homecomings, and The Affair.


Book cover of Chronology of a Coverup, 1941-1973

DC Alden Author Of The Angola Deception

From my list on coverups and conspiracies.

Why am I passionate about this?

I’ve always been a voracious reader, and from an early age I was drawn to military, political, and science fiction thrillers because they explored a world of black operations, ruthless cabals, and clandestine government programmes. Later, I discovered that such a world exists, one where the military-industrial complex exerts enormous power and influence, a world of secretive global agendas, of dark actors controlling corrupt politicians, and cold-blooded military contractors, their allegiances no longer tied to any national flag but to mega-wealth cabals, offshore accounts, and vast pension funds. A world of shadows, where the light rarely shines, and the truth remains hidden. A truth often stranger than fiction.

DC's book list on coverups and conspiracies

DC Alden Why did DC love this book?

The first of a two-book series by accomplished historian Richard Dolan, this volume explores a bizarre and mystifying phenomenon that has fascinated me since I was a young boy, and later inspired me to write my own sci-fi thriller. In his book, Dolan proves beyond doubt that the CIA, NSA, FBI, and the USAF held a far deeper interest in the subject than publicly stated, an interest that often bordered on fear when mysterious, intelligently controlled aircraft violated US-restricted airspace at will. And continue to do so. Well-researched and meticulously referenced, Dolan’s series should be enough to convince the die-hard sceptics that whatever is travelling across our skies, it is beyond our current understanding. 

By Richard Dolan,

Why should I read it?

1 author picked Chronology of a Coverup, 1941-1973 as one of their favorite books, and they share why you should read it.

What is this book about?

Richard M. Dolan is a gifted historian whose study of U.S. Cold War strategy led him to the broader context of increased security measures and secrecy since World War II. One aspect of such government policies that has continued to hold the public's imagination for over half a century is the question of unidentified flying objects.

UFOs and the National Security State is the first volume of a two-part detailed chronological narrative of the national security dimensions of the UFO phenomenon from 1941 to the present. Working from hundreds of declassified records and other primary and secondary sources, Dolan centers…


Book cover of Cyber Attacks: Protecting National Infrastructure

Jennifer L. Bayuk Author Of Enterprise Security for the Executive: Setting the Tone from the Top

From my list on cybersecurity for every type of reader.

Why am I passionate about this?

I am a cybersecurity risk management thought leader and subject matter expert with hands-on experience in managing and measuring large-scale cybersecurity programs, system security architecture, cybersecurity tools and techniques, cybersecurity forensics, audit of information systems and networks, and technology control processes. I have spent my career educating others in cybersecurity, mostly because it has always been necessary to educate staff; and colleagues soon recognized that I was easily able to handle the transition from staff training to external classroom environments. But my main motivation for external cybersecurity education is to get feedback from the cybersecurity professional community on my approaches to today’s cybersecurity issues.

Jennifer's book list on cybersecurity for every type of reader

Jennifer L. Bayuk Why did Jennifer love this book?

Amoroso’s experience started with academic research at Bell Labs and Stevens Institute of Technology but moved quickly to practically fill voids at AT&T and NSA. His book reduces technical concepts in cybersecurity to basic principles and explains generically how they are effectively implemented. For the true techy who wants to fully understand all the formal logic behind the theories in Cyber Attacks, reach back to Ed Amoroso’s Fundamentals of Computer Security Technology (1994). 

By Edward Amoroso,

Why should I read it?

1 author picked Cyber Attacks as one of their favorite books, and they share why you should read it.

What is this book about?

Cyber Attacks takes the national debate on protecting critical infrastructure in an entirely new and fruitful direction. It initiates an intelligent national (and international) dialogue amongst the general technical community around proper methods for reducing national risk. This includes controversial themes such as the deliberate use of deception to trap intruders. It also serves as an attractive framework for a new national strategy for cyber security, something that several Presidential administrations have failed in attempting to create. In addition, nations other than the US might choose to adopt the framework as well.

This book covers cyber security policy development for…


Book cover of The Edge of Disaster: Rebuilding a Resilient Nation

A.H. Hay Author Of Before the Storm: Exploring Protection Planning and Security Integration

From my list on operational resilience and why it's important.

Why am I passionate about this?

I practised risk, resilience, and protection of infrastructure systems for 35 years. Mid-career, I became frustrated that we could deliver highly successful projects yet didn't deliver their ultimate purpose. This difference is particularly pronounced in war zones and the developing world, where most of my work has been. My research at the University challenged what I knew: it was as if someone had taken my heuristic understanding and cast the components like a pack of cards into the wind. I have shared some highlights in my journey to gather the cards. I hope you like them.

A.H.'s book list on operational resilience and why it's important

A.H. Hay Why did A.H. love this book?

More than any other writer, Flynn explained the value and need for resilient critical infrastructure. He distinguished between foreseeable and unforeseeable threats, and made clear that we can reduce the risk and impact of both. Since 9/11, anything purporting to discuss protection/security and resilience was skewed to terrrorism, giving scant consideration to more fundamental changes in our world. Flynn brought this broader perspective to the fore, and I would like to believe he influenced political and academic thinking. I fear he was the Cassandra to the business community, who are only now starting to understand the risks they face. I made this book core reading for all the infrastructure courses I teach. It is clear, simple, and sets each concept in context with an unambiguous call to action.

By Stephen Flynn,

Why should I read it?

1 author picked The Edge of Disaster as one of their favorite books, and they share why you should read it.

What is this book about?

Why do we remain unprepared for the next terrorist attack or natural disaster? Where are we most vulnerable? How have we allowed our government to be so negligent? Who will keep you and your family safe? Is America living on borrowed time? How can we become a more resilient nation?

Americans are in denial when it comes to facing up to how vulnerable our nation is to disaster, be it terrorist attack or act of God. We have learned little from the cataclysms of September 11 and Hurricane Katrina. When it comes to catastrophe, America is living on borrowed time–and…


5 book lists we think you will like!

Interested in national security, intelligence agency, and the Cold War?

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