Why am I passionate about this?

During my career as an author, I have written on everything from U.S. Presidents to natural disasters. My true passion, however, is military history, a subject I have followed closely since childhood. Why? I have no idea. Nevertheless, I have read widely on the subject and, with the publication of Outnumbered, fulfilled a longstanding dream. The early modern period of European history, during which the continent’s culture left behind the Middle Ages and laid the foundations of the world we live in today, was an era rife with military change and innovation, as well as endemic conflict and the emergence of powerful, centralized nation-states, all of which I find enthralling. These books bring this time and place to life.


I wrote

Outnumbered: Incredible Stories of History's Most Surprising Battlefield Upsets

By Cormac O'Brien,

Book cover of Outnumbered: Incredible Stories of History's Most Surprising Battlefield Upsets

What is my book about?

Who doesn’t love a good underdog story? While warfare has consistently demonstrated the decisive impact of superior numbers, lopsided engagements…

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The books I picked & why

Book cover of The Military Revolution: Military Innovation and the Rise of the West 1500-1800

Cormac O'Brien Why did I love this book?

In the year 1500 European civilization was fractured, deficient in natural resources, and unremarkable in its military technology. By 1800 it had gained control over one-third of the globe. How? This seminal work by Geoffrey Parker tackles that question with a sweeping assessment of global developments during the period, revealing the suite of innovations that allowed the West to expand so dramatically. Sparking a debate that continues to this day, it is a must-read on the subject of early modern technology, imperialism, and warfare.

By Geoffrey Parker,

Why should I read it?

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

What is this book about?

This is a new edition of Geoffrey Parker's much-admired illustrated account of how the West, so small and so deficient in natural resources in 1500, had by 1800 come to control over one-third of the world. Parker argues that the rapid development of military practice in the West constituted a 'military revolution' which gave Westerners an insurmountable advantage over the peoples of other continents. This edition incorporates new material, including a substantial 'Afterword' which summarises the debate which developed after the book's first publication.


Book cover of Gunpowder and Galleys: Changing Technology and Mediterranean Warfare at Sea in the 16th Century

Cormac O'Brien Why did I love this book?

The great John Keegan called this “among the two or three very best works of military history I have ever read,” and it’s easy to see why. An authoritative, deeply researched examination of the Mediterranean system of warfare at sea in the age immediately following the introduction of effective gunpowder weapons, Guilmartin’s riveting book takes us deep into the interminable rivalries between Christians and Muslims across the inland sea, revealing the peculiar realities—technological, geopolitical, climatic, cultural—that shaped the era’s tactics and strategy. This is a book full of fascinating revelations about a largely misunderstood chapter of history.

By John Francis Guilmartin,

Why should I read it?

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

What is this book about?

Interspersing topical chapters with chronological ones, Guilmartin (history and early modern European history, Ohio State U.) explores how the Mediterranean system of armed conflict at sea operated over the course of the 16th century. Among his findings is that the war galley held it own against the broadside sailing vessel into the 1580s; and the because of the characteristics of black powder and early modern naval ordinance, there was no direct relationship between a cannon's barrel length and its maximum effective range. The 1974 first edition was published by Cambridge University Press. Annotation ©2004 Book News, Inc., Portland, OR (booknews.com)


Book cover of Weapons and Warfare in Renaissance Europe: Gunpowder, Technology, and Tactics

Cormac O'Brien Why did I love this book?

While the title of this book implies a pretty broad subject, its true focus is on the development of gunpowder weapons and the awkward, often halting, development of their use during the Renaissance. The scope and depth of Hall’s research is frankly arresting, which makes it so much fun to read. There is essentially nothing about the early days of gunpowder and the weapons it gave rise to that you won’t find in this book. You'll learn why artillerists became a highly paid guild of specialists, why urine was so crucial to gunpowder production, why the challenge of storing powder lead inadvertently to its dramatic increase in explosive force, and so much more.

By Bert S. Hall,

Why should I read it?

2 authors picked Weapons and Warfare in Renaissance Europe as one of their favorite books, and they share why you should read it.

What is this book about?

Weapons and Warfare in Renaissance Europe explores the history of gunpowder in Europe from the thirteenth century, when it was first imported from China, to the sixteenth century, as firearms became central to the conduct of war. Bridging the fields of military history and the history of technology -- and challenging past assumptions about Europe's "gunpowder revolution" -- Hall discovers a complex and fascinating story. Military inventors faced a host of challenges, he finds, from Europe's lack of naturally occurring saltpeter -- one of gunpowder's major components -- to the limitations of smooth-bore firearms. Manufacturing cheap, reliable gunpowder proved a…


Book cover of Siege Warfare: The Fortress in the Early Modern World 1494-1660

Cormac O'Brien Why did I love this book?

Christopher Duffy is a great go-to author for books on early modern warfare, and this is one of his finest—and most important--contributions to the subject. The transformation of the European landscape from a place littered with castles to one dominated by angular, masonry bastions, is an epic all its own, and here it is in all its complex glory. What emerges is a nuanced, nicely illustrated narrative of one of the greatest arms races in military history: increasingly destructive weapons vs. the fortified structures built to thwart them. There is plenty of action in this book, as well, as Duffy spares nothing in the telling of siege warfare and its grisly idiosyncrasies.

By Christopher Duffy,

Why should I read it?

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

What is this book about?

Hardback went out of print in 1989


Book cover of The Thirty Years War

Cormac O'Brien Why did I love this book?

The late, great C.V. Wegwood was one of the masters of narrative history who—like her contemporary Barbara Tuchman—became a legend for weaving a bounty of facts into a brilliant page-turner. In this classic, she takes on what is perhaps Europe’s most infamously complicated war and succeeds with characteristic genius. The Thirty Years War (1618-1648) was many things: the culmination of Europe’s religious wars, a struggle for the heart of a continent, a clash of empires, a collapse of civilization, and, perhaps most poignantly, a sprawling nightmare that still haunts the German people. Wedgwood covers it all in a crisp, witty narrative in which characters high and low virtually walk off the page. In English, this is probably still the reigning treatment of this bear of a subject, and it is a joy to read.

By C.V. Wedgwood,

Why should I read it?

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

What is this book about?

Europe in 1618 was riven between Protestants and Catholics, Bourbon and Hapsburg--as well as empires, kingdoms, and countless principalities. After angry Protestants tossed three representatives of the Holy Roman Empire out the window of the royal castle in Prague, world war spread from Bohemia with relentless abandon, drawing powers from Spain to Sweden into a nightmarish world of famine, disease, and seemingly unstoppable destruction.


Explore my book 😀

Outnumbered: Incredible Stories of History's Most Surprising Battlefield Upsets

By Cormac O'Brien,

Book cover of Outnumbered: Incredible Stories of History's Most Surprising Battlefield Upsets

What is my book about?

Who doesn’t love a good underdog story? While warfare has consistently demonstrated the decisive impact of superior numbers, lopsided engagements have on occasion had an unexpected outcome. Outnumbered chronicles fourteen momentous battles in which a smaller, ostensibly weaker force prevailed in an epochal confrontation, from ancient times through World War II.

How did Hannibal’s 55,000 Carthaginians turn the tables on an 80,000-strong force of Romans? What allowed 6,000 Englishman to overcome 20,000 French at Agincourt in 1415? Which errors doomed a Russian army twice as large as its opposing German force at the Battle of Tannenberg during World War I? Replete with sudden twists of fate and intriguing character studies, this is a fascinating look at the capriciousness of battle and the unexpected lessons to be learned from overcoming the odds.

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Secret St. Augustine: A Guide to the Weird, Wonderful, and Obscure

By Elizabeth Randall, William Randall,

Book cover of Secret St. Augustine: A Guide to the Weird, Wonderful, and Obscure

Elizabeth Randall Author Of Secret St. Augustine: A Guide to the Weird, Wonderful, and Obscure

New book alert!

Why am I passionate about this?

Author Reader Baker Teacher Matriarch Adventurer

Elizabeth's 3 favorite reads in 2024

What is my book about?

Tourists and local residents of St. Augustine will enjoy reading about the secret wonders of their ancient city that are right under their noses. Of course, that includes a few stray corpses and ghosts!

Secret St. Augustine: A Guide to the Weird, Wonderful, and Obscure

By Elizabeth Randall, William Randall,

What is this book about?

It is no wonder the ancient city of St. Augustine is steeped in secrets.

St. Johns, the oldest continuously occupied county in America, celebrated its 450th birthday on September 4, 2015. More like a European enclave than an urban landscape, it is a place of cannon fire, street parties, historical reenactments, concerts, and more. From admiring replicas of fine art at Ripley’s Believe or Not, to hunting haunts in restaurants and museums, to eating ice cream from a recipe originated by World War II bombardiers, St. Augustine has it all from beaches, gourmet dining, festivals, and attractions.


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