Coming out of retirement to run for president, Jack Ryan finds himself in the middle of a high-stakes attack from his opponent as his close comrade, John Clark, is the subject of treacherous charges, at the same time Jack Ryan, Jr. and other members of Campus struggle to stop terrorists.

"In the past few years, the killing and capture of many Al-Qaeda leaders has left the terrorist organization wounded--but by no means dead. And they intend to prove it. On a dark summer night, two Chechen mercenaries emerge from the waters off Nantucket to kill a high-value target, the former president of the United States, Jake Cazalet. Unfortunately for them, Cazalet has guests with him, including black ops specialist Sean Dillon and his colleague,...

Gabriel Allon's idyllic world is once again thrown into turmoil with shocking news from London. The defector and former Russian intelligence officer Grigori Bulganov, who saved Gabriel's life in Moscow, has vanished without a trace. British intelligence is sure he was a double agent all along, but Gabriel knows better. He also knows he made a promise--a promise that leads to a deadly duel of nerve and wits with one of the world's most ruthless men:...

"Throughout our life, we look for ways to keep our mind sharp and effortlessly productive. Now, globetrotting neurosurgeon Dr. Sanjay Gupta offers insights from top scientists all over the world, whose cutting-edge research can help you heighten and protect brain function and maintain cognitive health at any age. Keep Sharp debunks common myths about aging and cognitive decline, explores whether there's a "best" diet or exercise regimen for the brain,...

This is an latest international thriller about a terrifying nuclear alliance among three world powers--Russia, Iran, and North Korea--and the man who must halt their deadly strategy. Shot out of the air in enemy territory in the middle of the greatest international crisis since the end of the Cold War, former U.S. Secret Service agent Marcus Ryker finds himself facing an impossible task. Not only does he have to somehow elude detection and capture...

Groundbreaking and timely, Grain Brain shows that the fate of your brain is not in your genes. Its in the food you eat. The cornerstone of all degenerative conditions, including brain disorders, is inflammation, which can be triggered by carbs, especially containing gluten or high in sugar. Dr. Perlmutter explains what happens when the brain encounters common ingredients in your daily bread and fruit bowls, how statin drugs may be erasing your memory,...

Days before the July Fourth holiday and the dedication of One World Trade Center at Ground Zero, an incident aboard a commercial jet flying over the Atlantic Ocean reminds everyone that vigilance is not a task to be taken lightly. But for iconoclastic NYPD detective Jeremy Fisk, it may also be a signal that there is much more to this case than the easy answer of this being just the work of another lone terrorist.

"On a remote island estate, a billionaire investor sells his air freight company to a mysterious new owner. The purchaser is none other than the President of Russia, Gennadiy Gryzlov. The Russians will use these private planes to secretly transport dangerous cargo into the United States. The inept American President Stacy Anne Barbeau has failed to account for the Russian threat. But others have been vigilant and will not leave America defenseless....

The death of a journalist leads Gabriel Allon to Russia, where he finds that, in terms of spycraft, even he has something to learn. He's playing by Moscow rules now. Ivan Kharkov, a former KGB colonel who built a global investment empire on the rubble of the Soviet Union, is an arms dealer and he is about to deliver Russia's most sophisticated weapons to al- Qaeda. Unless Allon can learn the time and place of the delivery, the world will see the deadliest...

In the wake of a former U.S. President's appointment to the United Nations, counterterrorism operative Scot Harvath is wrongly implicated for a string of national emergencies and assassinations, a situation that forces him to race against time to uncover the real culprit.