"The Day of the Jackal" is a suspenseful thriller that revolves around an unnamed and highly skilled professional assassin who is hired by a French dissident paramilitary organization to kill Charles de Gaulle, the President of France. The novel intricately details the meticulous preparations of the assassin, his many disguises, and his method of operation, while also depicting the desperate efforts of the French police to uncover his identity and prevent the assassination, leading to a tense cat-and-mouse chase across Europe.

"The Secret Agent" is a dark political satire set in London in the late 19th century, revolving around a secret agent who is also a shopkeeper, his anarchist friends, and his family. The story unfolds as the agent is coerced by his foreign employers to orchestrate a bombing in a bid to provoke a political response, but the plan goes disastrously wrong, leading to tragic consequences and a deep exploration of themes such as anarchism, espionage, terrorism, and betrayal.

In this espionage thriller, a retired British intelligence officer, known for his bespectacled and unassuming demeanor, is called back into action when one of his former assets, a Soviet general, is found murdered. The investigation leads him across Europe, rekindling old rivalries and uncovering a complex web of betrayal and deception. As he delves deeper into the case, he must confront his own past and a formidable Soviet spymaster, ultimately leading to a high-stakes game of intelligence and counterintelligence, where the stakes are not just personal, but have far-reaching implications for the security of the West.

The novel delves into the intricate world of espionage, centering on a British intelligence operative who, disillusioned with his nation's foreign policy and personal tragedies, becomes a mole for the Soviet Union. As he navigates the morally ambiguous terrain of loyalty and betrayal, the story explores themes of love, guilt, and the clash between personal ethics and duty. The protagonist's quiet life is disrupted as his superiors begin to suspect a leak within the agency, leading to an introspective and suspenseful narrative that examines the human motivations behind political treachery.