The culture of Hungary varies across Hungary, starting from the capital city of Budapest on the Danube, to the Great Plains bordering Ukraine.
 Hungary has a rich folk crafts tradition, for example: embroidery, decorated pottery and carvings.
 Hungarian music ranges from the rhapsodies of Franz Liszt and folk music to modern songs influenced by folk music and Roma music.
 Hungary has a rich and colorful literature with many poets and writers although not many are known abroad due to the limited prevalence of the Hungarian language.
 Some noted authors include Sándor Márai and Imre Kertész, who have been gaining acclaim in recent decades.
 János Kodolányi was well known in Italy and Finland in the mid-20th century.
 Imre Kertész won the Nobel Prize in Literature in 2002.
 Péter Esterházy is popular in Austria and Germany, and Magda Szabó has recently become well known in Europe as well.
Fateless (Hungarian: "Sorstalanság" ) is a Hungarian film directed by Lajos Koltai, released in 2005.
 It is based on the semi-autobiographical novel "Fatelessness" by the Nobel Prize-winner Imre Kertész, who also wrote the screenplay.
 It tells the story of a teenage boy who is sent to concentration camps at Auschwitz, Buchenwald and Zeitz.
Nelson Richard DeMille (born August 23, 1943) is an American author of action adventure and suspense novels.
 His novels include "Plum Island", "The Charm School", and "The Gold Coast".
 DeMille has also written under the pen names Jack Cannon, Kurt Ladner, Ellen Kay and Brad Matthews.
Imre Kertész (] ; 9 November 192931 March 2016) was a Hungarian author and recipient of the 2002 Nobel Prize in Literature, "for writing that upholds the fragile experience of the individual against the barbaric arbitrariness of history".
 He was the first Hungarian to win the Nobel in Literature.
 His works deal with themes of Nazi Holocaust (he was a survivor of a German concentration camp), dictatorship and personal freedom.
 He died on 31 March 2016, aged 86, at his home in Budapest after suffering from Parkinson's disease for several years.
Hungarian literature is the body of written works primarily produced in Hungarian, and may also include works written in other languages (mostly Latin), either produced by Hungarians or having topics which are closely related to Hungarian culture.
 While it was less known in the English-speaking world for centuries, Hungary's literature gained renown in the 19th and 20th centuries, thanks to a new wave of internationally accessible writers like Mór Jókai, Antal Szerb, Sándor Márai, Imre Kertész and Magda Szabó.
Fateless or Fatelessness (Hungarian: "Sorstalanság" , lit.
 "Fatelessness") is a novel by Imre Kertész, winner of the 2002 Nobel Prize for literature, written between 1969 and 1973 and first published in 1975.
Necropolis is an autobiographical novel, written by Boris Pahor, about his Holocaust experience that has been compared to works of Primo Levi, Imre Kertész, and Jorge Semprún.
The Lion is a 2010 novel by American author Nelson DeMille.
 It is the fifth of DeMille's novels to feature Detective John Corey, now working as a contractor for the fictional FBI Anti-Terrorist Task Force in New York City.
 The novel is the sequel to "Wild Fire".
 The Lion is followed by DeMille’s 2012 novel, "The Panther".
Kaddish for an Unborn Child (Hungarian: "Kaddis a meg nem született gyermekért" ) is a novel by Imre Kertész, first published in 1990 (ISBN  ).
The Panther is a 2012 novel by American author Nelson DeMille.
 It is the sixth of DeMille's novels to feature Detective John Corey, now working as a contractor for the fictional FBI Anti-Terrorist Task Force in New York City.
 The novel is the sequel to "The Lion".
 The Panther is followed by DeMille’s 2015 novel, "Radiant Angel".
 Also featured in this novel is DeMille’s other fictional character, Paul Brenner, who appears in The General's Daughter and Up Country.

Question: What is the occupation of both  Nelson DeMille and Imre Kertész?
Answer: author