Librarian Note: There is more than one author in the Goodreads database with this name. Harry Harrison (born Henry Maxwell Dempsey) was an American science fiction author best known for his character the The Stainless Steel Rat and the novel Make Room! Make Room! (1966), the basis for the film Soylent Green (1973). He was also (with Brian W. Aldiss) co-president of the Birmingham Science Fiction Group. Excerpted from Wikipedia.

Isaac Asimov was a Russian-born, American author, a professor of biochemistry, and a highly successful writer, best known for his works of science fiction and for his popular science books. Professor Asimov is generally considered one of the most prolific writers of all time, having written or edited more than 500 books and an estimated 90,000 letters and postcards. He has works published in nine of the ten major categories of the Dewey Decimal System (lacking only an entry in the 100s category of Philosophy). Asimov is widely considered a master of the science-fiction genre and, along with Robert A. Heinlein and Arthur C. Clarke, was considered one of the "Big Three" science-fiction writers during his lifetime. Asimov's most famous work is the Foundation Series; his other major series are the Galactic Empire series and the Robot series, both of which he later tied into the same fictional universe as the Foundation Series to create a unified "future history" for his stories much like those pioneered by Robert A. Heinlein and previously produced by Cordwainer Smith and Poul Anderson. He penned numerous short stories, among them "Nightfall", which in 1964 was voted by the Science Fiction Writers of America the best short science fiction story of all time, a title many still honor. He also wrote mysteries and fantasy, as well as a great amount of nonfiction. Asimov wrote the Lucky Starr series of juvenile science-fiction novels using the pen name Paul French. Most of Asimov's popularized science books explain scientific concepts in a historical way, going as far back as possible to a time when the science in question was at its simplest stage. He often provides nationalities, birth dates, and death dates for the scientists he mentions, as well as etymologies and pronunciation guides for technical terms. Examples include his Guide to Science, the three volume set Understanding Physics, and Asimov's Chronology of Science and Discovery. Asimov was a long-time member and Vice President of Mensa International, albeit reluctantly; he described some members of that organization as "brain-proud and aggressive about their IQs" He took more joy in being president of the American Humanist Association. The asteroid 5020 Asimov, the magazine Asimov's Science Fiction, a Brooklyn, NY elementary school, and two different Isaac Asimov Awards are named in his honor.

Ray Douglas Bradbury, American novelist, short story writer, essayist, playwright, screenwriter and poet, was born August 22, 1920 in Waukegan, Illinois. He graduated from a Los Angeles high school in 1938. Although his formal education ended there, he became a "student of life," selling newspapers on L.A. street corners from 1938 to 1942, spending his nights in the public library and his days at the typewriter. He became a full-time writer in 1943, and contributed numerous short stories to periodicals before publishing a collection of them, Dark Carnival, in 1947. His reputation as a writer of courage and vision was established with the publication of The Martian Chronicles in 1950, which describes the first attempts of Earth people to conquer and colonize Mars, and the unintended consequences. Next came The Illustrated Man and then, in 1953, Fahrenheit 451, which many consider to be Bradbury's masterpiece, a scathing indictment of censorship set in a future world where the written word is forbidden. In an attempt to salvage their history and culture, a group of rebels memorize entire works of literature and philosophy as their books are burned by the totalitarian state. Other works include The October Country, Dandelion Wine, A Medicine for Melancholy, Something Wicked This Way Comes, I Sing the Body Electric!, Quicker Than the Eye, and Driving Blind. In all, Bradbury has published more than thirty books, close to 600 short stories, and numerous poems, essays, and plays. His short stories have appeared in more than 1,000 school curriculum "recommended reading" anthologies. Ray Bradbury's work has been included in four Best American Short Story collections. He has been awarded the O. Henry Memorial Award, the Benjamin Franklin Award, the World Fantasy Award for Lifetime Achievement, the Grand Master Award from the Science Fiction Writers of America, the PEN Center USA West Lifetime Achievement Award, among others. In November 2000, the National Book Foundation Medal for Distinguished Contribution to American Letters was conferred upon Mr. Bradbury at the 2000 National Book Awards Ceremony in New York City. Ray Bradbury has never confined his vision to the purely literary. He has been nominated for an Academy Award (for his animated film Icarus Montgolfier Wright), and has won an Emmy Award (for his teleplay of The Halloween Tree). He adapted sixty-five of his stories for television's Ray Bradbury Theater. He was the creative consultant on the United States Pavilion at the 1964 New York World's Fair. In 1982 he created the interior metaphors for the Spaceship Earth display at Epcot Center, Disney World, and later contributed to the conception of the Orbitron space ride at Euro-Disney, France. Married since 1947, Mr. Bradbury and his wife Maggie lived in Los Angeles with their numerous cats. Together, they raised four daughters and had eight grandchildren. Sadly, Maggie passed away in November of 2003. On the occasion of his 80th birthday in August 2000, Bradbury said, "The great fun in my life has been getting up every morning and rushing to the typewriter because some new idea has hit me. The feeling I have every day is very much the same as it was when I was twelve. In any event, here I am, eighty years old, feeling no different, full of a great sense of joy, and glad for the long life that has been allowed me. I have good plans for the next ten or twenty years, and I hope you'll come along."

Fritz Reuter Leiber Jr. was one of the more interesting of the young writers who came into HP Lovecraft's orbit, and some of his best early short fiction is horror rather than sf or fantasy. He found his mature voice early in the first of the sword-and-sorcery adventures featuring the large sensitive barbarian Fafhrd and the small street-smart-ish Gray Mouser; he returned to this series at various points in his career, using it sometimes for farce and sometimes for gloomy mood pieces—The Swords of Lankhmar is perhaps the best single volume of their adventures. Leiber's science fiction includes the planet-smashing The Wanderer in which a large cast mostly survive flood, fire, and the sexual attentions of feline aliens, and the satirical A Spectre is Haunting Texas in which a gangling, exo-skeleton-clad actor from the Moon leads a revolution and finds his true love. Leiber's late short fiction, and the fine horror novel Our Lady of Darkness, combine autobiographical issues like his struggle with depression and alcoholism with meditations on the emotional content of the fantastic genres. Leiber's capacity for endless self-reinvention and productive self-examination kept him, until his death, one of the most modern of his sf generation. Used These Alternate Names: Maurice Breçon, Fric Lajber, Fritz Leiber, Jr., Fritz R. Leiber, Fritz Leiber Jun., Фриц Лейбер, F. Lieber, フリッツ・ライバー