(Reuters) - Best-selling U.S. author Tom Clancy, who thrilled readers with vivid descriptions of soldiers and spies in novels including "The Hunt for Red October" and "Patriot Games," has died at 66, his publisher said on Wednesday.
Clancy, whose books sold more than 100 million copies, died on Tuesday in his hometown of Baltimore, Maryland, Penguin said.
"I'm deeply saddened by Tom's passing," said David Shanks, a Penguin executive who had worked with Clancy from the start of his writing career through the upcoming "Command Authority," which is due out in December.
"He was a consummate author, creating the modern-day thriller, and was one of the most visionary storytellers of our time. I will miss him dearly and he will be missed by tens of millions of readers worldwide," he said.
Clancy died at Johns Hopkins Hospital. The cause of death was not immediately disclosed.
His works closely tracked Americans' security fears, moving from Cold War face-offs to terrorist attacks and both fascinated readers with their high-stakes plots and enthralled military experts with their precise details.
The books also inspired Hollywood blockbuster films including "Clear and Present Danger," starring Harrison Ford, and a series of video games, published by Ubisoft Entertainment SA.
Ford and actors Alec Baldwin and Ben Affleck played Jack Ryan, one of Clancy's most famous characters, on the big screen.
"Spending time with Tom prior to shooting was the best part of that whole experience for me," said Baldwin, who starred in 1990's "The Hunt for Red October."
"Tom was smart, a great story teller and a real gentleman."
Clancy's career also benefited from fans within Washington power circles. His 1984 debut "The Hunt for Red October," the account of a rogue naval commander on a nuclear-armed Soviet submarine, won praise from then-president Ronald Reagan, who declared it a good "yarn."
In total, Clancy published 25 fiction and non-fiction books, which also included "The Sum of All Fears" and "Rainbow Six." Later books moved on from the Cold War to deal with terrorism and friction between the United States and China.
The detail of Clancy's novels sometimes raised eyebrows in the intelligence community. According to The New York Times, in a 1986 interview, Clancy recalled meeting Navy Secretary John Lehman whose first question about "Red October" was "Who the hell cleared it?"
But the accurate description of the U.S. military won him fans in uniform.
"His earlier books were ones that had great following in the military because of their accuracy," said Tad Oelstrom, a retired U.S. Air Force lieutenant-general, who now serves as director of the national security program at Harvard University.
Oelstrom recalled meeting Clancy at a dinner in 1999 at the U.S. Air Force Academy in Colorado Springs. Even at the height of his fame, when surrounded by high-ranking fliers telling war stories, Clancy was a careful listener, Oelstrom said.
"My suspicion is he was soaking up as much as he was giving, just because of the stories that were being told about the Vietnam era," Oelstrom said.
His most recent book, "Threat Vector," debuted at the top of the Publishers Weekly bestseller list in December 2012. His publisher is a unit of Britain's Pearson PLC.
Clancy's next book, "Command Authority," is due to be published on December 3.
Clancy is survived by his wife Alexandra Llewellyn Clancy and their daughter Alexis Jacqueline Page Clancy, and four children from a previous marriage to Wanda King, including Michelle Bandy, Christine Blocksidge, Kathleen Clancy and Thomas Clancy 3rd.
Clancy grew up in Baltimore and in 1969 graduated from Loyola University in Maryland. He worked as an insurance broker before selling his first novel. He was also a part owner of the Baltimore Orioles baseball team.
In a 1992 interview with The Baltimore Sun, he attributed much of his success to being "lucky," saying that he had a normal middle-class American upbringing.
"I was a little nerdy but a completely normal kid," Clancy told the newspaper. "Mom and Dad loved each other. It was like 'Leave it to Beaver.'"
Reporting by Scott Malone; Additional reporting by Patricia Reaney; Editing by Diane Craft, Toni Reinhold