Of great significance in Trakl's early home life in Salzburg was his close, possibly incestuous, relations with his sister Grete. Critics frequently identify her as the inspiration for "the sister," a multifaceted symbolic figure in the poems. Trakl attended a Catholic elementary school, while receiving Protestant religious instruction; he was an unsuccessful student and eventually dropped out of school. Later, however, he entered the University of Vienna for training as a pharmacist, a vocation which facilitated his lifelong use of drugs. Soon after leaving the university he was drafted into the Austrian army and assigned to the medical corps. Returning to civilian life, Trakl found a job in a pharmacy, failed to adjust to the routine of working life, and reenlisted in the army. In 1912, while stationed in Innsbruck, he met Ludwig von Ficker, editor of Der Brenner. Ficker became friend and mentor to Trakl for the remaining years of his short life, publishing the poet's work regularly in his literary journal. Trakl died of a self-administered, though perhaps accidental, drug overdose in a Polish hospital while recovering from his battle experience during World War I.
Critics agree that, though Trakl had been writing poetry from an early age, his best work dates from the final two years of his life, displaying a noticeable development from his efforts prior to 1912. Personal torment and an unrelieved sense of horror and disintegration dominated the earlier poems. The tone of Trakl's later poems is more impersonal and ambiguous. In these works Trakl transcends the extreme subjectivity of his former poetic self to universalize his existential vision. Some critics describe this new quality in Trakl's mature poems as a mythic objectivity, while confronting the paradox that this poet's world is essentially private, resembling that of a schizophrenic. Critical analysis of Trakl's work has revealed its disjointed, fragmentary nature, summarizing it as a collection of often-repeated symbols and motifs without consistent meaning. These poems, however, are credited with a consistency of mood and attitude that unifies them into a cohesive, though nonrational, statement. In essence, they form the poet's protest against the corrupt, fallen condition of humankind.
In just two years Trakl managed to produce the poems that place him among the most important and original poets of the German language. His language was simple and clear, even in translation, resembling the work of Hoelderlin, with strong and precise imagery, darkly brooding sensitivity, and an adept feeling for color. He wrote about death, decay, and doom, hiding himself in lyrical metaphor and the ambiguity of his images. Trakl saw the world collapsing around him and taking him with it; and while his poetry is overwhelmingly negative, critics find in it a gesture of affirmation. Internal evidence of the poems and statements made by Trakl have indicated to many commentators that he was a Christian or at least gave voice to Christian doctrine, and thus balanced his visions of damnation with the possibility of ultimate redemption. He described poetry as "imperfect penance" for "unabsolved guilt." Other critics see in this more positive side to his work the influence of pantheistic views acquired from Hoelderlin. Herbert Lindenberger wrote in Georg Trakl, "The lofty stance, the cosmic range, and the haunting music of Trakl's poetry now mark him, with Rilke, as perhaps the last great representative of what could be called the sublime tradition in German."
- Gedichte, 1913.
- Sebastian im traum, 1915.
- Die dichtungen, 1918.
- Aus goldenem kelch: Die Jugenddichtungen, edited by Erhard Buschbeck, Muller (Salzburg), 1939.
- Gesamtausgabe (collected works), edited by Wolfgang Schneditz, three volumes, [Salzburg], 1938-49.
- Decline: Twelve Poems, translation by Michael Hamburger, Latin Press (St. Ives), 1952.
- Twenty Poems, translation by James Wright and Robert Bly, Sixties Press (Madison), 1961.
- Selected Poems, edited by Christopher, translation by Robert Grenier and others, J. Cape (London), 1968.
- Dichtungen und briefe, Muller, 1969.
- In the Red Forest, 1973.
- Poems, translation by Lucia Getsi, Mundus Artium Press (Athens), 1973.
- Winter Night: Four Prose Poems, translation by David J. Black, Thunder City Press (Birmingham), 1979.
- Georg Trakl: A Profile, edited by Frank Graziano, Logbridge-Rhodes (Durango), 1983.
- Song of the West: Selected Poems of Georg Trakl, translation by Robert Firmage, North Point Press (San Francisco), 1988.
- Autumn Sonata: Selected Poems of Georg Trakl, translation by Daniel Simko, Moyer Bell (Mt. Kisco), 1989.
- Craorag, Carbad (Baile Atha Cliath, Ireland), 1991.
- Salzburg, photographs by Oskar Anrather, Residenc Verlag (Salzburg, Austria), 1994.
- Vivienne Olive, In Den Nachmittag Geflustert, Furore-Edition (Kassel, Germany), 1988.
- Tilo Medek, Geistliche: Sechs Lieder fur Mittlere Singtimme und Orgel, Moeck Verlag (Celle, Germany), 1992.
- Huub Kerstens, Das Tiefe Lieb: Opus 36, for Mixed Choir and Six Brass Instruments, 1993, Donemus (Amsterdam, Netherlands), 1993.
- Huub Kerstens, Untergang: For Mixed Choir, Violin, Violoncello, Harmonium, and Piano, opus 35, 1992, Donemus (Amsterdam, Netherlands), 1993.
- Cagey, T. J., Manshape That Shone: An Interpretation of Trakl, Blackwell, 1964.
- Cohen, J. M., Poetry of This Age: 1908-1965, Hutchinson University Library, 1966.
- Detsch, Richard, Georg Trakl's Poetry: Toward a Union of Opposites, Pennsylvania State University Press, 1983.
- Hamburger, Michael, Reason and Energy: Studies in German Literature, Grove Press, 1957.
- Heidegger, Martin, On the Way to Language, translated by Peter Hertz, Harper, 1971.
- Kurrik, Maire Jaanus, Georg Trakl, Columbia University Press, 1974.
- Leiva-Merikakis, Erasmo, The Blossoming Thorn: Georg Trakl's Poetry of Atonement, Bucknell University Press, 1987.
- Lindenberger, Herbert, George Trakl, Twayne, 1971.
- Sokel, Walter H., The Writer in Extremis: Expressionism in Twentieth-Century German Literature, Stanford University Press, 1959.
- Williams, Eric B., editor, The Dark Flutes of Fall: Critical Essays on Georg Trakl, Camden House (Columbia), 1991.
- Williams, Eric B., The Mirror and the Word: Modernism, Literary Theory, and Georg Trakl, University of Nebraska Press, 1993.
- German Life & Letters, January, 1949, pp. 122-137.
- Listener, October 24, 1968, p. 542.
- Times Literary Supplement, September 7, 1970, p. 752.