Theodor Seuss Geisel ( ; March 2, 1904 – September 24, 1991) was an American author, political cartoonist, poet, animator, book publisher, and artist, best known for authoring children's books under the pen name Dr. Seuss ( ).
 His work includes several of the most popular children's books of all time, selling over 600 million copies and being translated into more than 20 languages by the time of his death.
Theodor Seuss Geisel, better known as Dr. Seuss, published over 60 children's books over the course of his long career.
 Though most were published under his well-known pseudonym, Dr. Seuss, he also authored over a dozen books as Theo.
 LeSieg and one as Rosetta Stone.
 As one of the most popular children's authors of all time, Geisel's books have topped many bestseller lists, sold over 222 million copies, and been translated into more than 15 languages.
 In 2000, when "Publishers Weekly" compiled their list of the best-selling children's books of all time; 16 of the top 100 hardcover books were written by Geisel, including "Green Eggs and Ham", at number 4, "The Cat in the Hat", at number 9, and "One Fish Two Fish Red Fish Blue Fish", at number 13, and "Dr. Seuss's ABC".
 In the years following his death in 1991, several additional books based on his sketches and notes were published, including "Hooray for Diffendoofer Day!
" and "Daisy-Head Mayzie".
 Although they were all published under the name Dr. Seuss, only "My Many Colored Days", originally written in 1973, was entirely by Geisel.
Robert Lloyd Fish (August 21, 1912 – February 23, 1981) was an American writer of crime fiction.
 His first novel, "The Fugitive", gained him the Mystery Writers of America's Edgar Allan Poe Award for best first novel in 1962, and his short story "Moonlight Gardener" was awarded the Edgar for best short story in 1972.
 His 1963 novel "Mute Witness", written under the pseudonym Robert L. Pike, was filmed in 1968 as "Bullitt", starring Steve McQueen.
 [Not same as Robert L. Fish, an author known for fictions such as 'Pursuit' ('Twist of Fate'- 1989 movie adaptation), 'The Memoirs of Sherlock Holmes', etc.]
Beginner Books is the Random House imprint for young children ages 3–9, co-founded by Phyllis Cerf with Ted Geisel, more often known as Dr. Seuss, and his wife Helen Palmer Geisel.
 Their first book was Dr. Seuss's "The Cat in the Hat" (1957).
 Cerf compiled a list of 379 words as the basic vocabulary for young readers, along with another twenty slightly harder "emergency" words.
 No more than 200 words were taken from that list to write "The Cat in the Hat".
 Subsequent books in the series were modeled on the same requirement.
Helen Marion Palmer Geisel (September 23, 1898 – October 23, 1967), known professionally as Helen Palmer, was an American children's author, editor, and philanthropist.
 She was married to fellow author Theodor Seuss Geisel, better known as Dr. Seuss, from 1927 until her death.
 Her best-known books include "Do You Know What I'm Going to Do Next Saturday?
", "I Was Kissed by a Seal at the Zoo", "Why I Built the Boogle House", and "A Fish Out Of Water".
A Fish out of Water is a 1961 American children's book written by Helen Palmer Geisel (credited as Helen Palmer) and illustrated by P. D. Eastman.
 The book is based on a short story by Palmer's husband Theodor Geisel (Dr. Seuss), "Gustav, the Goldfish", which was published with his own illustrations in "Redbook" magazine in June 1950.
McElligot's Pool is a children's book written and illustrated by Theodor Geisel under the pen name Dr. Seuss and published by Random House in 1947.
 In the story, a boy named Marco, who first appeared in Geisel's 1937 book "And to Think That I Saw It on Mulberry Street", imagines a wide variety of strange fish that could be swimming in the pond in which he is fishing.
Do You Know What I'm Going To Do Next Saturday?
 is a 1963 children's book published by Beginner Books and written by Helen Palmer Geisel, the first wife of Theodor Seuss Geisel (Dr. Seuss).
 Unlike most of the Beginner Books, "Do You Know What I'm Going To Do Next Saturday?"
 did not follow the format of text with inline drawings, being illustrated with black-and-white photographs by Lynn Fayman, featuring a boy named Rawli Davis.
 It is sometimes misattributed to Dr. Seuss himself.
 The book's cover features a photograph of a young boy sitting at a breakfast table with a huge pile of pancakes.
Passage is a 2008 documentary film partly based on the book "Fatal Passage" about Sir John Franklin's lost expedition through the Northwest Passage.
 The film explores the fate of the doomed mission, including John Rae's efforts to uncover the truth, and Lady Franklin's campaign to defend her late husband's reputation.
 The film also features Inuit statesman Tagak Curley, who challenges claims made by Lady Franklin supported by her powerful friend, the story teller and "famous author Charles Dickens", widely reported at the time, that Aboriginal people were responsible for the signs of cannibalism among the remains of the doomed crew.
Ithiri Poove Chuvannapoove is a 1984 Indian Malayalam film, directed by Bharathan, story written by famous author Thikkodiyan and produced by P. V. Gangadharan.
 The film stars Mammootty, Madhu, Rahman, Suresh and Shobhana in lead roles.
 The film had musical score by Ravindran.

Question: A Fish out of Water written by Helen Palmer Geisel was based on the short story "Gustav, the Goldfish" by her husband, famous author known by what name?
Answer: Dr. Seuss