Active from the late 19th to the mid-20th century, Gide questioned prevailing values such as Christian morality and colonialism. In major novels like 'The Immoralist,' 'Strait is the Gate,' and 'The Counterfeiters,' protagonists struggle between social rules and personal desire while searching for their true selves. He depicted taboos such as homosexuality and extramarital love openly, prompting readers to think about diverse ways of living. With sharp psychological narration he revealed why people lie and how conscience hurts, paving the way for later psychological fiction. After visiting the Soviet Union he wrote 'Return from the U.S.S.R.,' criticizing communist contradictions and speaking out socially. This fearless love of truth provoked conservatives yet inspired younger generations. The Nobel Committee praised his candid and artistically rich portrayal of human complexity. His works show foresight that still resonates in today’s discussions on self-exploration and LGBTQ+ rights.

Gide’s style, rooted in Neo-Symbolism, blends autobiographical material with meta-fictional devices. In 'The Counterfeiters' he introduced a novel-within-the-novel and constantly shifting narrators, foregrounding the instability of truth. This narrative experiment influenced Sartre, Nabokov, and is regarded as a forerunner of post-modern fiction. Thematically, he probes key issues of modern individualism such as the conflict between desire and ethics, the need for recognition, and the liberation of the subject. Protagonists who have internalized Christian asceticism are torn between Eros and faith, a plot inviting comparison with Freudian models of repression. His Congo travel diary sharply criticized Eurocentrism and is frequently cited in post-colonial studies. Because Gide openly acknowledged his homosexual orientation and documented it thoroughly in his journals, they are indispensable primary sources for queer studies. During the 1930s he interacted with left-wing intellectuals but still condemned Stalinist repression, thereby questioning the political responsibility of writers. These multifaceted activities intersect literary theory, psychology, and political thought, encouraging interdisciplinary scholarship. The Nobel Prize recognized not only his aesthetic achievements but also the enlightening and critical functions of his comprehensive oeuvre.

Recent Gide studies within genetic criticism compare autograph variants and reassess intertextuality among letters, diaries, and published texts. The self-reflexive architecture of 'The Counterfeiters' is situated as a predecessor of Genette’s metalepsis and is cited in post-classical narratology concerning focalization. At the level of écriture, Gide employs ellipsis and free indirect discourse to guide the reader into an undecided configuration, preserving polysemy. Ethically he proposes an engagement problématique that predates Sartrean commitment, privileging subjective autonomy while rejecting absolute truth. The Congo travelogue and 'Return from the U.S.S.R.' serve as a nexus between studies of otherness and ideological critique. His portrayal of homosexuality anticipated constructivist understandings of sexuality and is cited by Foucault in 'The History of Sexuality.' Autograph self-corrections reveal dynamics of self-censorship, making his corpus a key case in textual criticism. Hence, the 1947 Nobel Prize can be read as recognition of a body of work whose implications extend across textual theory and intellectual history.