Judy Blume (born Judith Sussman; February 12, 1938) is an American writer known for children's and young adult (YA) fiction.
 Some of her best known works are "Are You There God?
 It's Me, Margaret" (1970), "Tales of a Fourth Grade Nothing" (1972), "Deenie" (1973), and "Blubber" (1974).
 "The New Yorker" has called her books "talismans that, for a significant segment of the American female population, marked the passage from childhood to adolescence."
Writer of the Purple Rage is a collection of short works by American author Joe R. Lansdale, published in 1994.
 It was nominated for a Bram Stoker Award in the "Fiction Collection" category.
 The title is a play on the Philip José Farmer novella "Riders of the Purple Wage", and before that, the Zane Grey novel "Riders of the Purple Sage".
Flesh is an American science fiction novel written by Philip José Farmer.
 Originally released in 1960, it was Farmer's second novel-length publication, after "The Green Odyssey".
 "Flesh" features many sexual themes, as is typical of Farmer's earliest work.
Up from the Bottomless Pit and Other Stories (ISBN  ) is an original collection featuring a novel and other short literary works by American science fiction author Philip José Farmer, edited by Christopher Paul Carey, published in 2007.
 All of the works in the book written by Farmer previously appeared in the periodical "" between the years 2005 and 2007.
 The collection includes several mainstream stories by Farmer, who is better known for his science fiction work.
The Green Odyssey is an American science fiction novel written by Philip José Farmer.
 It was Farmer's first book-length publication, originally released by Ballantine in 1957.
 Unlike Farmer's most prolific earlier short story work, this book contains no sexual themes, though his next book "Flesh" returned to these motifs.
 The novel also appeared in the back ground of the first episode of "The Twilight Zone".
The Other Log of Phileas Fogg is a science fiction/steampunk parallel history novel written by American author Philip José Farmer in 1973.
 It was originally published by DAW Books and later reprinted in 1979 by Hamlyn and again in 1982 by Tor Books.
 Tor has subsequently reissued the novel in 1988 and 1993.
Philip José Farmer (January 26, 1918 – February 25, 2009) was an American author known for his science fiction and fantasy novels and short stories.
Farmerphile: The Magazine of Philip José Farmer was a quarterly digest-sized magazine which published fiction and non-fiction by and about science fiction and fantasy author Philip José Farmer.
 Over its first ten issues, the magazine serialized the first-time publication of Farmer's novel "Up from the Bottomless Pit".
 This novel, as well as the short stories and public talks published in issue numbers 1–10 of "Farmerphile", later appeared in book form in the collection "Up from the Bottomless Pit and Other Stories".
 A total of fifteen issues of "Farmerphile" were published, from July 2005 through January 2009.
Venus on the Half-Shell is a science fiction novel by American writer Philip José Farmer, writing pseudonymously as "Kilgore Trout", a fictional recurring character in many of the novels of Kurt Vonnegut.
 This book first appeared as a lengthy fictitious "excerpt"—written by Vonnegut, but attributed to Trout—in Vonnegut's "God Bless You, Mr. Rosewater" (1965).
 With Vonnegut's permission, Farmer expanded the fragment into an entire standalone novel (including, as an in-joke, a scene that incorporates all of Vonnegut's original text).
 Farmer's story was first published in two parts beginning in the December 1974 issue of "The Magazine of Fantasy and Science Fiction".
 The plot, in which Earth is destroyed by cosmic bureaucrats doing routine maintenance and the sole human survivor goes on a quest to find the "Definitive Answer to the Ultimate Question," was paid homage by the later "Hitchhiker's Guide to the Galaxy" series.
Venus on the Half-Shell and Others (ISBN  ) is a collection mostly of science fiction author Philip José Farmer's pseudonymous fictional-author literary works, edited by Christopher Paul Carey and published in 2008.
 Farmer describes a fictional-author story as "a tale supposedly written by an author who is a character in fiction."
 Carey, who had access to Farmer's correspondence while editing the book, reveals in his introduction that in the early to mid-1970s Farmer planned to edit an anthology of fictional-author stories by other writers.
 Farmer solicited fictional-author stories from authors such as Arthur Jean Cox, Philip K. Dick, Leslie Fiedler, Ron Goulart, Howard Waldrop, and Gene Wolfe, urging them to submit their stories to venues such as "The Magazine of Fantasy and Science Fiction".
 Only Cox, Waldrop, and Wolfe completed their stories and had them published, although Philip K. Dick's never realized fictional-author story "A Man for No Countries" as by Hawthorne Abendsen is said to have led Dick to write his posthumous novel "Radio Free Albemuth".
 In the end, Farmer's fictional-author anthology never materialized.

Question: Which American Author worked in more genres, Judy Blume or Philip José Farmer?
Answer: Philip José Farmer