The Newton Letter is a novel by John Banville, first published in 1982.
 It was published in the United States in 1987.
 Drawing comparisons with Ford Madox Ford's "The Good Soldier" and John Hawkes's "The Blood Oranges" for their use of the unreliable narrator, "The Newton Letter" was described there as Banville's "most impressive work to date".
Jeff Noon (born 1957 in Droylsden, Lancashire, England) is a novelist, short story writer and playwright whose works make use of word play and fantasy.
 Noon's speculative fiction books have ties to the works of writers such as Lewis Carroll and Jorge Luis Borges.
 Prior to his relocation in 2000 to Brighton, Noon set most of his stories in some version of his native city of Manchester.
Needle in the Groove is a 1999 novel by Jeff Noon.
 A music/spoken word CD was released on the same day as the book.
Brand New World, also called Woundings, a UK movie filmed in Cregneash, Isle of Man, based on Jeff Noon's play "Woundings" and released in 1998.
William John Banville (born 8 December 1945), who writes as John Banville and sometimes as Benjamin Black, is an Irish novelist, adapter of dramas, and screenwriter.
 Recognised for his precise, cold, forensic prose style, Nabokovian inventiveness, and for the dark humour of his generally arch narrators, Banville is considered to be "one of the most imaginative literary novelists writing in the English language today."
 He has been described as "the heir to Proust, via Nabokov."
Pollen is a 1995 science fiction novel written by British author Jeff Noon.
Vurt is a 1993 science fiction novel written by British author Jeff Noon.
 Both Noon and small publishing house Ringpull's debut novel, it went on to win the 1994 Arthur C. Clarke Award and was later listed in "The Best Novels of the Nineties".
Automated Alice is a fantasy novel by British author Jeff Noon, first published in 1996.
 The book follows Alice's travels to a future Manchester city populated by "Newmonians", "Civil Serpents" and a vanishing cat.
Nymphomation is a novel by British author Jeff Noon, first published in 1997.
Ghosts is a novel by Irish writer John Banville.
 Published in 1993, it was his first novel since "The Book of Evidence" (1989), which was shortlisted for the Booker Prize.
 The second in what Banville described as a "triptych", to make "an investigation of the way in which the imagination works."
 This novel features many of the same characters and relates to events of the previous novel.

Question: Are Jeff Noon and John Banville both novelists?
Answer: yes