George Smiley, an agent at the very highest level of British Intelligence, enters the twilight world of espionage and his own past when he is assigned to discover which of his four closest colleagues is a double agent.

"Ben Ripley is recruited for a magnet school with a focus on science--but he's entirely shocked to discover that the school is actually a front for a junior C.I.A. academy. Ben becomes an undercover agent and goes on his first assignment in this graphic novel adaptation of SPY SCHOOL"-- Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school....

After getting expelled from spy school for accidentally shooting a live mortar into the principal's office, thirteen-year-old Ben finds himself recruited by evil crime organization SPYDER.

While trying out the spy glasses, spy hat, and other items in their new spy kit, seven-year-old Henry and his dog Mudge make a new friend and form a spy club.

In 1940, eighteen-year old Juliet Armstrong is reluctantly recruited into the world of espionage. Sent to an obscure department of MI5 tasked with monitoring the comings and goings of British Fascist sympathizers, she discovers the work to be by turns both tedious and terrifying. But after the war has ended, she presumes the events of those years have been relegated to the past forever. Ten years later, now a radio producer at the BBC, Juliet is unexpectedly...

As almost thirteen-year-old Ben, a student at the CIA's academy for future intelligence agents, prepares to go to spy summer camp, he receives a death threat from the evil organization SPYDER.

George Smiley, retired from the world of spies and treachery, is summoned by an old friend to help with a small problem: at the exclusive school where Smiley's friend teaches it seems there's been a murder. Frightfully embarrassing, of course. Perhaps George could quietly look into the matter? Once more, Smiley is up to his elbows in spies and treachery, of a different sort.

For readers enthralled by the phrase walking back the cat (also the title of one of Littell's previous thrillers), this hefty tome will be nirvana. Littell, whose spy thrillers have ensnared readers since 1973's The Defection of A.J. Lewinter, here turns his literary eye and rapier-sharp mind on the Central Intelligence Agency. Starting during the Berlin years in the deep freeze of the Cold War, Littell follows two generations of agents and administrators...

Mrs. Cooney, the school nurse, is so beautiful that A.J. has a crush on her--even though he suspects she might be an international spy!

John Wells is the only American CIA agent ever to penetrate al Qaeda. Since before the attacks in 2001, Wells has been hiding in the mountains of Pakistan, biding his time, building his cover. During his time in the mountains he has became a Muslim and finds the U.S. decadent and shallow. With another al Qaeda plot looming, he returns to the U.S. but his superiors are unsure to about his loyalities and freeze him out.