The Best American Poetry 1993, a volume in "The Best American Poetry series", was edited by David Lehman and by guest editor Louise Glück.
Paul Celan ( ; ] ; 23 November 1920 – c. 20 April 1970) was a Romanian-born German language poet and translator.
 He was born as Paul Antschel to a Jewish family in Cernăuți (German: Czernowitz), in the then Kingdom of Romania (now Chernivtsy, Ukraine), and adopted the pseudonym "Paul Celan".
 He became one of the major German-language poets of the post-World War II era.
Six Celan Songs • The Ballad of Kastriot Rexhepi is the 54th album release by Michael Nyman, who not only composed but also conducted both the works on the album.
 The first, a setting of poetry by Paul Celan, was originally recorded by Ute Lemper and the Michael Nyman Band on "The Michael Nyman Songbook" in 1991, and here the band is joined by Hilary Summers.
 "The Ballad of Kastriot Rexhepi" is a new work created with the artist Mary Kelly.
 This is performed by soprano Sarah Leonard with The Nyman Quartet: Gabrielle Lester, Catherine Thompson, Kate Musker, and Tony Hinnigan.
The Symphony No. 5 is a composition for baritone, mezzo-soprano, and orchestra by the American composer John Harbison.
 The work was commissioned by the Boston Symphony Orchestra under the conductor James Levine.
 It was given its world premiere in Boston on April 17, 2008 by the mezzo-soprano Kate Lindsey, the baritone Nathan Gunn, and the Boston Symphony Orchestra directed by James Levine.
 The text of the piece is set to "Orpheus and Eurydice" by Czesław Miłosz, "Relic" by Louise Glück, and the "Sonnets to Orpheus" by Rainer Maria Rilke.
Der Sand aus den Urnen (in English, "The Sand from the Urns"), is a German-language poetry collection by Paul Celan, published in Vienna in 1948.
 It was the first publication of Celan in German, and contains one of his best-known poems, "Todesfuge" (written 1944-45).
The Wild Iris is a 1992 poetry book by Louise Glück, for which she received the Pulitzer Prize in 1993.
 The book also received the National Book Critics Award for Poetry and the Poetry Society of America's Melville Kane Award.
Averno is Louise Glück's eleventh collection of poetry published in 2006 by Farrar, Straus and Giroux.
 It was a National Book Award Finalist for Poetry that year.
Lichtzwang (rendered in English as Lightduress) is a 1970 German-language poetry collection by Paul Celan.
 It was written in 1967, and published three months after Celan's death.
 It was published in an English translation in 2005.
"Todesfuge " (translated into English as Death Fugue and Fugue of Death) is a German language poem written by the Romanian-born poet Paul Celan probably around 1945 and first published in 1948.
 It is "among [Celan's] most well-known and often-anthologized poems".
 The poem "combines mysteriously compelling imagery with rhythmic variations and structural patterns that are both elusive and pronounced".
 At the same time it has been regarded as a "masterful description of horror and death in a concentration camp".
 Celan was born to a Jewish family in Cernauti, Romania (now Chernivtsy, Ukraine); his parents died in a camp during the Second World War, and Celan himself was a prisoner for a time in a work camp.
Louise Elisabeth Glück (born April 22, 1943) is an American poet.
 She was appointed Poet Laureate Consultant in Poetry to the Library of Congress in 2003, after serving as a Special Bicentennial Consultant three years prior in 2000.
 She won the National Book Award for Poetry in 2014 for "Faithful and Virtuous Night".

Question: What profession do Louise Glück and Paul Celan share?
Answer: poet