The novel is a semi-autobiographical work that explores the harsh realities of life through the cynical and disillusioned eyes of the protagonist. The narrative follows his experiences from the trenches of World War I, through the African jungles, to the streets of America and the slums of Paris, showcasing the horrors of war, colonialism, and the dark side of human nature. The protagonist's journey is marked by his struggle with despair, loneliness, and the absurdity of existence, offering a bleak yet profound commentary on the human condition.

The novel follows the life of an eccentric aristocrat who retreats from society to live in isolation, dedicating himself to the pursuit of excessive aestheticism. He surrounds himself with art, literature, and music, and indulges in sensual pleasures and extravagant interior decoration. The protagonist's obsession with artifice over nature and his quest for absolute individualism and self-gratification are explored, reflecting the decadent movement of the late 19th-century France.

"Death on Credit" is a semi-autobiographical novel that explores the life of a young Frenchman in Paris during the early 20th century. The protagonist, a medical student from a poor family, struggles with the harsh realities of life, including poverty, sickness, and death. The narrative is marked by its dark humor, cynicism, and scathing critique of society, reflecting the author's own experiences and views. The protagonist's journey is a constant struggle against the absurdity and despair of existence, depicted through a series of episodic adventures and misadventures.

The novel is a dark, poetic exploration of the criminal underworld in Paris, focusing on the life and fantasies of a homosexual prostitute and thief. The protagonist, while in prison, creates an elaborate fantasy world populated by outcasts, convicts, and murderers, including a transgender character who becomes his ideal of beauty and purity. The narrative is filled with graphic depictions of sex and violence, and explores themes of transgression, identity, and the transformative power of the imagination.

"Blue of Noon" is a provocative novel set in 1930s Europe during the rise of fascism. The story follows the life of an Englishman living in Paris, who is embroiled in a self-destructive cycle of sexual escapades and political extremism. His journey takes him through various European cities, where he engages in debauchery and encounters the political turmoil of the time. The book explores themes of existentialism, nihilism, and the human condition, offering a dark and complex portrayal of a man's struggle with his inner demons and the chaotic world around him.

"Down There" is a novel that follows the life of a Parisian novelist who is disillusioned with his mundane life and seeks solace in the occult. His journey leads him to a satanic priest who introduces him to the dark world of satanism. The protagonist becomes deeply involved in this world, experiencing hallucinations and disturbing visions. The book is a deeply psychological exploration of the human fascination with evil and the macabre, set against the backdrop of late 19th-century Parisian society.

The book is a philosophical work that presents the core tenets of existentialist thought, emphasizing the individual's unique position as a self-determining agent responsible for the authenticity of their choices and actions. It argues that human existence precedes essence, meaning that people first exist without predetermined purpose and must then define themselves through their decisions and commitments. The text also addresses the implications of this freedom, including the weight of responsibility it places on individuals and the consequent anxiety, as well as the absence of a universal moral code. It concludes with a discussion on the role of human solidarity and the ethical considerations that arise from our interconnectedness with others.

"Aurelia" is a semi-autobiographical narrative blending reality with dreamlike visions, where the protagonist embarks on a profound and surreal journey through his psyche following a descent into madness. The work is a poignant exploration of the author's own experiences with mental illness, unrequited love, and existential anguish. It delves into themes of the supernatural, the occult, and the interplay between dreams and waking life, as the narrator seeks to reconcile his internal turmoil and find a deeper understanding of his soul and the universe. The narrative is rich with symbolic imagery and introspective passages that reflect the author's fascination with the mystical and his quest for spiritual transcendence.