Which author is known for the existential themes in their works, particularly in "Crime and Punishment"?

Fyodor Dostoyevsky is a prominent figure in literature known for his exploration of existential themes, particularly in works such as "Crime and Punishment." In this novel, Dostoyevsky delves deep into the psychological turmoil of his protagonist, Raskolnikov, who grapples with moral dilemmas and the consequences of his actions. The story examines the nature of guilt, redemption, and the search for meaning in a chaotic world, which are all key aspects of existential philosophy.

Dostoyevsky's characters often confront profound questions about existence, freedom, and the human condition, making his work a foundational piece in the study of existentialism. His ability to portray the internal struggles of individuals faced with ethical uncertainties allows readers to engage with the complexity of life and the human psyche, reinforcing the existential motifs that are central to his narratives. This sets him apart from the other authors listed, who primarily focus on different themes and styles in their writings.