Nor Crystal Tears is a science fiction novel by American writer novel by Alan Dean Foster, first published on 12 August 1982.
 Foster's ninth book set in the Humanx Commonwealth, it is a first-contact story about the meeting of the insectoid Thranx and Man.
 This sets in motion the creation of the Humanx Commonwealth; the political body that is the union of human and thranx society which forms the foundation for many of Foster's science-fiction novels.
The Deluge Drivers (1987) is a science fiction novel by American writer Alan Dean Foster.
 It is the final entry in Foster's "Icerigger Trilogy" of books taking place in the Humanx Commonwealth book series.
 The two earlier books in the series are "Icerigger" and "Mission to Moulokin."
Icerigger is a 1974 science fiction novel by American writer Alan Dean Foster.
 Like many of Foster's science-fiction novels, "Icerigger" takes place within his Humanx Commonwealth fictional universe.
 The book's two sequels are "Mission to Moulokin" and "The Deluge Drivers."
The Tar-Aiym Krang (1972) is a science fiction novel by American writer Alan Dean Foster.
 It is Foster’s first published novel and started both his Humanx Commonwealth universe and his two most popular recurring characters, Pip and Philip Lynx ("Flinx").
 The book is second chronologically in the Pip and Flinx series.
Orphan Star (1977) is a science fiction novel by American writer Alan Dean Foster.
 The book is Foster's eighteenth published book, his fifth original novel, and is chronologically the third entry in the Pip and Flinx series. "
Bloodhype" (1973) was the second novel to include Pip and Flinx, but it is eleventh chronologically in the series and the two characters had a relatively small part in that novel's plot.
Bloodhype (1973) is a science fiction novel by American writer Alan Dean Foster.
 The book is eleventh chronologically in the Pip and Flinx series, though it was written second; the main characters since they only appear in the last third of the book.
 Foster originally started the novel as a stand-alone work, but was encouraged by his publishers to include the characters from his previous novel.
 In the series, it falls after "Orphan Star", where Flinx meets the aliens who build him his ship, the Teacher.
Grażyna Miller (29 January 1957 – 17 August 2009) was a Polish poet and translator who lived in Italy.
Phylogenesis (1999) is a science fiction novel by American writer Alan Dean Foster.
 It is the first novel in Foster's "Founding of the Commonwealth Trilogy".
Sentenced to Prism (1985) is a science fiction novel by American writer Alan Dean Foster, a stand-alone entry in his Humanx Commonwealth series of books.
 Like many of his books, Foster creates an extraordinary world that he tries to make unlike anything ever seen by his readers by creating a primarily silicon-based planet with almost everything seeming to be made from crystals, glass, and reflective surfaces.
Alan Dean Foster (born November 18, 1946) is an American writer of fantasy and science fiction, a prolific creator of and contributor to book series as well as the author of more than 20 standalone novels.
 He is especially prolific in his novelizations of film scripts.

Question: Name a word that can be used to describe the prolific contributors Grażyna Miller, a Polish poet and Alan Dean Foster a writer of fantasy and science fiction?
Answer: creator