Martin Gardner

Martin Gardner
Born	(1914-10-21)October 21, 1914 Tulsa, Oklahoma, USA
Died	May 22, 2010(2010-05-22) (aged 95) Norman, Oklahoma, USA
Pen name	George Groth
Occupation	Author
Nationality	United States
Alma mater	University of Chicago (BA, 1936 & > 1 yr graduate classes)
Period	1950–2010
Genre	Puzzles, popular mathematics, stage magic, debunking
Literary movement	Scientific skepticism
Notable works	Fads and Fallacies in the Name of Science; "Mathematical Games" (Scientific American column); The Annotated Alice; The Ambidextrous Universe
Signature

Martin Gardner (October 21, 1914 – May 22, 2010) was an American writer whose works covered the subjects of recreational mathematics, micromagic, stage magic, literature (especially the writings of Lewis Carroll), philosophy, scientific skepticism, and religion. He wrote the Mathematical Games column in Scientific American from 1956 to 1981 and the Notes of a Fringe-Watcher column in Skeptical Inquirer from 1983 to 2002 and published over 70 books.

Biography

I just play all the time and am fortunate enough to get paid for it.

Martin Gardner, 1998

Gardner, son of a petroleum geologist, grew up in and around Tulsa, Oklahoma. He showed an early interest in puzzles and games and his closest childhood friend, John Bennett Shaw, later became "the greatest of all collectors of Sherlockian memorabilia". He attended the University of Chicago (UC) where he earned his bachelor's degree in philosophy in 1936. Early jobs included reporter on the Tulsa Tribune, writer at the UC Office of Press Relations and case worker in Chicago's Black Belt for the city's Relief Administration. During World War II, he served for several years in the U.S. Navy as a yeoman on board the destroyer escort USS Pope (DE-134) in the Atlantic. His ship was still in the Atlantic when the war came to an end with the surrender of Japan in August 1945.

After the war, Gardner returned to UC. He also attended graduate school for a year there, but he did not earn an advanced degree. In 1950 he published an article in the Antioch Review entitled "The Hermit Scientist," a pioneering work on what would later come to be called pseudoscientists. It was Gardner's first publication of a skeptical nature and two years later it was published in a much expanded book version: In the Name of Science, his first book.

In the early 1950s, he moved to New York City and became a writer and designer at Humpty Dumpty magazine where for eight years he wrote features and stories for it and several other children's magazines. His paper-folding puzzles at that magazine (sister publication to Children's Digest at the time, and now sister publication to Jack and Jill magazine) led to his first work at Scientific American.

For many decades, Gardner, his wife Charlotte, and their two sons lived in Hastings-on-Hudson, New York, where he earned his living as an independent author, publishing books with several different publishers, and also publishing hundreds of magazine articles and newspaper articles in various magazines and newspapers. Either by choice or coincidence (given his interest in logic and mathematics), they lived on Euclid Avenue.

In 1979, Gardner and his wife semi-retired and moved to Hendersonville, North Carolina. His wife died in 2000. In 2002, he returned to Norman, Oklahoma, where his son, James Gardner, is a professor of education at the University of Oklahoma. He died there on May 22, 2010.

Views and interests

Recreational mathematics

Martin Gardner more or less single-handedly sustained and nurtured interest in recreational mathematics in the U.S. for a large part of the 20th century. He is best known for his decades-long efforts in popular mathematics and science journalism, particularly through his "Mathematical Games" column in Scientific American.

Gardner had problems learning calculus and never took a mathematics course beyond high school. He was the editor of a children's magazine named Humpty Dumpty's Magazine for Little Children in 1956 when he was asked by the publisher of Scientific American about the possibility of starting a regular column about recreational mathematics, following his submission of an article about flexagons.

The "Mathematical Games" column ran from 1956 to 1981 and was the first introduction of many subjects to a wider audience, including:

• Flexagons
• John Horton Conway's Game of Life
• Polyominoes
• The Soma cube
• The board game "Nash", also called "Hex" and sometimes called "John", independently created by Piet Hein and John Forbes Nash
• Hare and Hounds
• Tangrams
• Penrose tiling
• Cryptanalysis/public key cryptography/trapdoor ciphers/the RSA-129 cryptographic challenge
• The work of M. C. Escher
• Fractals.

Many of these articles have been collected in a series of books starting with Mathematical Puzzles and Diversions, first published in 1956.

In 1981, on Gardner's retirement from Scientific American, the column was replaced by Douglas Hofstadter's "Metamagical Themas", a name that is an anagram of "Mathematical Games". Gardner never really retired as an author, but rather he continued to do literature research and to write, especially in updating many of his older books, such as Origami, Eleusis, and the Soma Cube, ISBN 978-0-521-73524-7, published 2008.

Gardner also wrote a "puzzle" story column for Asimov's Science Fiction magazine for a while in the late 1970s and early 1980s.

Pseudoscience

Gardner's uncompromising attitude toward pseudoscience made him one of the world's foremost anti-pseudoscience polemicists of the 20th century. His book Fads and Fallacies in the Name of Science (1952, revised 1957) is a classic and seminal work of the skeptical movement. It explored myriad dubious outlooks and projects including Fletcherism, creationism, food faddism, Charles Fort, Rudolf Steiner, Scientology, Dianetics, UFOs, dowsing, extra-sensory perception, the Bates method, and psychokinesis. This book and his subsequent efforts (Science: Good, Bad and Bogus, 1981; Order and Surprise, 1983, etc.) earned him a wealth of detractors and antagonists in the fields of "fringe science" and New Age philosophy, with many of whom he kept up running dialogs (both public and private) for decades.

In 1976, Gardner was a founding member of the Committee for the Scientific Investigation of Claims of the Paranormal (CSICOP), and he wrote a column called "Notes of a Fringe Watcher" (originally "Notes of a Psi-Watcher") from 1983 to 2002 for that organization's periodical Skeptical Inquirer. These have been collected in five books: New Age: Notes of a Fringe Watcher (1988), On the Wild Side (1992), Weird Water and Fuzzy Logic (1996), Did Adam and Eve Have Navels (2000), and Are Universes Thicker than Blackberries (2003). Gardner was a senior CSICOP fellow and prominent skeptic of the paranormal.

On August 21, 2010, Gardner was posthumously honored with an award recognizing his contributions in the skeptical field, from the Independent Investigations Group during its 10th Anniversary Gala.

Religion and philosophy

Gardner had an abiding fascination with religious belief. He was a fideistic deist, professing belief in God as Creator, but critical of organized religion. He has been quoted as saying that he regards parapsychology and other research into the paranormal as tantamount to "tempting God" and seeking "signs and wonders". He stated that while he would expect tests on the efficacy of prayers to be negative, he would not rule out a priori the possibility that as yet unknown paranormal forces may allow prayers to influence the physical world.

Gardner wrote repeatedly about what public figures such as Robert Maynard Hutchins, Mortimer Adler, and William F. Buckley, Jr. believed and whether their beliefs were logically consistent. In some cases, he attacked prominent religious figures such as Mary Baker Eddy on the grounds that their claims are unsupportable. His semi-autobiographical novel The Flight of Peter Fromm depicts a traditionally Protestant Christian man struggling with his faith, examining 20th century scholarship and intellectual movements and ultimately rejecting Christianity while remaining a theist. He described his own belief as philosophical theism inspired by the theology of the philosopher Miguel de Unamuno. While critical of organized religions, Gardner believed in God, asserting that this belief cannot be confirmed or disconfirmed by reason or science. At the same time, he was skeptical of claims that God has communicated with human beings through spoken or telepathic revelation or through miracles in the natural world.

Gardner's philosophy may be summarized as follows: There is nothing supernatural, and nothing in human reason or visible in the world to compel people to believe in God. The mystery of existence is enchanting, but a belief in "The Old One" comes from faith without evidence. However, with faith and prayer people can find greater happiness than without. If there is an afterlife, the loving "Old One" is probably real. "[To an atheist] the universe is the most exquisite masterpiece ever constructed by nobody", from G. K. Chesterton, was one of Gardner's favorite quotes.

Gardner has said that he suspects that the fundamental nature of human consciousness may not be knowable or discoverable, unless perhaps a physics more profound than ("underlying") quantum mechanics is some day developed. In this regard, he said, he was an adherent of the "New Mysterianism".

Literary criticism and fiction

Gardner was considered a leading authority on Lewis Carroll. His annotated version of Alice's Adventures in Wonderland and Through the Looking Glass, explaining the many mathematical riddles, wordplay, and literary references found in the Alice books, was first published as The Annotated Alice (Clarkson Potter, 1960), a sequel published with new annotations as More Annotated Alice (Random House, 1990), and finally as The Annotated Alice: The Definitive Edition (Norton, 1999) combining notes from the earlier editions and new material. The book arose when Gardner, who found the Alice books 'sort of frightening' when he was young but found them fascinating as an adult, felt that someone ought to annotate them and suggested to a publisher that Bertrand Russell be asked; when the publisher did not manage to get past Russell's secretary, Gardner was asked to take the project. The book has been Gardner's most successful, selling over half a million copies.

In addition to the 'Alice' books, Gardner produced “Annotated” editions of Chesterton’s The Innocence Of Father Brown and The Man Who Was Thursday as well as of celebrated poems including The Rime of the Ancient Mariner, Casey at the Bat, The Night Before Christmas, and The Hunting of the Snark; the last also written by Lewis Carroll.

Gardner occasionally tried his hand at fiction of a kind always closely associated with his non-fictional preoccupations. His roman à clef novel was The Flight of Peter Fromm (1973) and his short stories were collected in The No-Sided Professor and Other Tales of Fantasy, Humor, Mystery, and Philosophy (1987). Gardner published stories about an imaginary numerologist named Dr. Matrix and Visitors from Oz (1998), based on L. Frank Baum's Oz books, which reflected his love of Oz. (He was a founding member of the International Wizard of Oz Club, and winner of its 1971 L. Frank Baum Memorial Award.) Gardner was a member of the all-male literary banqueting club, the Trap Door Spiders, which served as the basis of Isaac Asimov's fictional group of mystery solvers, the Black Widowers.

Gatherings for Gardner

Gardner was famously shy and declined many honors when he learned that a public appearance would be required if he accepted. However, in 1993 Atlanta puzzle collector Tom Rodgers persuaded Gardner to attend an evening devoted to Gardner's puzzle-solving efforts. The gathering was repeated in 1996, again with Gardner in attendance, which convinced Rodgers and his friends to make the gathering a regular event. It has been held since then in even-numbered years near Atlanta, and the program consists of any topic which could have been touched by Gardner during his writing career. The event is called "Gathering for Gardner", and is written "G4Gn", with n being replaced by the number of the event (the 2010 event thus was G4G9). Gardner only attended the 1993 and 1996 events.

Controversy

In addition to writing about mathematics, Gardner was an avid controversialist on contemporary issues, arguing for his points of view in a wide range of fields, from general semantics to fuzzy logic to watching TV (he once wrote a negative review of Jerry Mander's book Four Arguments for the Elimination of Television). His philosophical views are described and defended in his book The Whys of a Philosophical Scrivener. Under the pseudonym "George Groth", Gardner panned his own book for the New York Review of Books. Although Gardner was a fierce critic of paranormal claims, under his "George Groth" pseudonym he wrote an article for Fate magazine (October 1952, pp. 39–43) titled "He Writes with Your Hand," which touted the psychic abilities of mentalist Stanley Jaks as genuine.

Gardner was known for his sometimes controversial philosophy of mathematics. He wrote negative reviews of The Mathematical Experience by Philip J. Davis and Reuben Hersh and What is mathematics, really? by Hersh, each of which were critical of aspects of mathematical Platonism, and the first of which was well received by the mathematical community. While Gardner was often perceived as a hard-core Platonist, his reviews demonstrated some formalist tendencies. Gardner maintained that his views are widespread among mathematicians, but Hersh has countered that in his experience as a professional mathematician and speaker, this is not the case.

Works

Books

• 1936 Match-ic, Ireland Magic Company, illust. by Nelson Hahne.
• 1940 12 Tricks with a Borrowed Deck, Ireland Magic Company, illust. by Harlan Tarbell, intro. by Paul Rosini.
• 1941 After the Dessert, Max Holden, illust. by Nelson Hahne.
• 1942 Cut the Cards, Max Holden, illust. by Nelson Hahne.
• 1949 Over the Coffee Cups, Tulsa: Montandon Magic, illust. by the author (close-up magic, including "dinner-table tricks and gags")
• 1952 In the Name of Science: An Entertaining Survey of the High Priests and Cultists of Science, Past and Present G. P. Putnam's Sons
• 1956 Mathematics, Magic and Mystery, Mineola, New York: Dover Publications, ISBN 0-486-20335-2, retrieved 15 November 2010
• 1957 Science Puzzlers The Viking Press, Scholastic Book Services
• 1957 Fads and Fallacies in the Name of Science (2nd edition, revised & expanded), Mineola, New York: Dover Publications; Originally published 1952 by G.P. Putnam's Sons, as In the Name of Science; ISBN: 0-486-20394-8.
• 1957 Great Essays in Science (editor); Prometheus Books (Reprint edition 1994) ISBN 0-87975-853-8
• 1957 The Wizard of Oz and Who He Was. (with Russel B. Nye) Michigan State University Press. Revised 1994.
• 1958 Logic Machines and Diagrams. McGraw-Hill New York
• 1960 The Annotated Alice New York: Bramhall House Clarkson Potter. Lib of Congress #60-7341 (no ISBN)
• 1962 The Annotated Snark New York: Simon & Schuster. (Unabridged Hunting of the snark with introduction and extensive notes from Gardner). 1998 reprint, Penguin Classics; ISBN 0-14-043491-7
• 1962 Relativity for the Million New York: MacMillan Company (o.p.). Revised and updated 1976 as The Relativity Explosion New York: Vintage Books. Revised and enlarged 1996 as Relativity Simply Explained New York: Dover; ISBN 0-486-29315-7
• 1964 The Ambidextrous Universe: Mirror Asymmetry and Time-Reversed Worlds (Revised ed., 1990 as The New Ambidextrous Universe: Symmetry and Asymmetry from Mirror Reflections to Superstrings; 3rd ed., 2005, Dover; ISBN 0-486-44244-6)
• 1965 The Annotated Ancient Mariner New York: Clarkson Potter, Reprint. Prometheus. ISBN 1-59102-125-1
• 1967 Annotated Casey at the Bat: A Collection of Ballads about the Mighty Casey New York: Clarkson Potter. Reprint. Chicago: University of Chicago Press, 1984. ISBN 0-226-28263-5 Reprint. New York: Dover, 1995. ISBN 0-486-28598-7
• 1973 The Flight of Peter Fromm, Los Altos, California: William Kaufmann, Inc. Prometheus Books; Reprint edition (1994) ISBN 0-87975-911-9
• 1976 The Incredible Dr. Matrix, New York, Charles Scribner's Sons; ISBN 0-684-14669-X
• . (1976), The Relativity Explosion, Vintage Books, ISBN 978-0394721040  Revised republication of Relativity for the Million (Macmillan 1962). See also 1997 corrected and expanded republication under Relativity Simply Explained {{citation}}: |author= has numeric name (help)CS1 maint: postscript (link)
• 1978 Aha! Insight, W.H. Freeman & Company; ISBN 0-7167-1017-X
• 1981 Science: Good, Bad, and Bogus, Prometheus Books; ISBN 0-87975-573-3 (paperback), ISBN 0-87975-144-4 (hardback), ISBN 0-380-61754-4 (Avon pocket paperback)

• 1981 Entertaining Science Experiments With Everyday Objects; Dover; ISBN 0-486-24201-3
• 1982 Aha! Gotcha: Paradoxes to Puzzle and Delight (Tools for Transformation); W.H. Freeman & Company; ISBN 0-7167-1361-6
• 1983 The Whys of a Philosophical Scrivener, 1999 reprint St. Martin's Griffin; ISBN 0-312-20682-8
• 1983 Order and Surprise, Prometheus Books, ISBN 0-879-75219-X
• 1984 Codes, Ciphers and Secret Writing (Test Your Code Breaking Skills), Dover; ISBN 0-486-24761-9
• 1985 Magic Numbers of Dr Matrix, Prometheus Books; ISBN 0-87975-282-3
• 1986 Entertaining Mathematical Puzzles, Dover; ISBN 0-486-25211-6
• 1987 The No-Sided Professor and other tales of fantasy, humor, mystery, and philosophy, Prometheus Books; ISBN 0-87975-390-0
• 1987 The Annotated Innocence of Father Brown Oxford University Press, ISBN 0-19-217748-6 (Notes by Gardner, on G. K. Chesterton’s stories).
• 1987 Riddles of the Sphinx Mathematical Association of American, ISBN 0-88385-632-8 (collection of articles from Isaac Asimov's Science Fiction Magazine)
• 1987 Time Travel and Other Mathematical Bewilderments, W.H. Freeman & Company; ISBN 0-7167-1925-8
• 1988 Perplexing Puzzles and Tantalizing Teasers, Dover; ISBN 0-486-25637-5
• 1988 New Age: Notes of a Fringe Watcher, Prometheus Books; ISBN 0-87975-432-X (collection of "Notes of a Fringe Watcher" columns)
• 1990 More Annotated Alice, Random House; ISBN 0-394-58571-2 (a "supplement" to The Annotated Alice)
• 1991 The Unexpected Hanging and Other Mathematical Diversions, University Of Chicago Press; Reprint edition; ISBN 0-226-28256-2
• 1991 The Annotated Night Before Christmas: A Collection Of Sequels, Parodies, And Imitations Of Clement Moore's Immortal Ballad About Santa Claus Edited, with an introduction and notes, by Martin Gardner, Summit Books (Reprinted, Prometheus Books, 1995); ISBN 0-671-70839-2
• 1991 Fractal Music, Hypercards and More; W. H. Freeman
• 1992 On the Wild Side, Prometheus Books; ISBN 0-87975-713-2 (collection of "Notes of a Fringe Watcher" columns)
• 1993 The Healing Revelations of Mary Baker Eddy, Prometheus Books,
• 1994 My Best Mathematical and Logic Puzzles, Dover; ISBN 0-486-28152-3
• 1995 Classic Brainteasers, Sterling Publishing; ISBN 0-8069-1261-8
• 1995 Urantia: The Great Cult Mystery, Prometheus Books; ISBN 0-87975-955-0
• 1996 The Universe in a Handkerchief: Lewis Carroll's Mathematical Recreations, Games, Puzzles, and Word Plays, Springer-Verlag
• 1996 Weird Water & Fuzzy Logic: More Notes of a Fringe Watcher, Prometheus Books; ISBN 1-57392-096-7 (collection of "Notes of a Fringe Watcher" columns)
• 1997 The Night Is Large : Collected Essays, 1938-1995, St. Martin's Griffin; ISBN 0-312-16949-3
• . (1997), Relativity Simply Explained, Dover, ISBN 0-486-29315-7, retrieved 15 November 2010  Corrected and enlarged republication of Relativity for the Million (Macmillan 1962), itself revised under The Relativity Explosion (Vintage 1976) {{citation}}: |author= has numeric name (help)CS1 maint: postscript (link)
• 1998 Calculus Made Easy, St. Martin's Press; Revised edition ISBN 0-312-18548-0 (Revisions and additions to the 1910 calculus textbook by Silvanus P. Thompson.)
• 1998 Martin Gardner's Table Magic, Dover; ISBN 0-486-40403-X
• 1998 Mathematical Recreations: A Collection in Honor of Martin Gardner, Dover; ISBN 0486400891
• 1998 Visitors From Oz St. Martin's Press; ISBN 0-312-19353-X
• 1999 Gardner's Whys & Wherefores Prometheus Books; ISBN 1-57392-744-9
• 1999 The Annotated Alice: The Definitive Edition ; W.W. Norton & Company; ISBN 0-393-04847-0
• 1999 The Annotated Thursday: G. K. Chesterton's Masterpiece, the Man Who Was Thursday by G. K. Chesterton, Edited by Martin Gardner.
• 2000 From the Wandering Jew to William F. Buckley, Jr. : On Science, Literature, and Religion, Prometheus Books; ISBN 1-57392-852-6
• 2000 The Annotated Wizard of Oz, New York: W.W. Norton & Company; ISBN 0-393-04992-2 (introduction)
• 2001 A Gardner's Workout: Training the Mind and Entertaining the Spirit ISBN 1-56881-120-9
• 2001 Mathematical Puzzle Tales; Mathematical Association of America ISBN 0-88385-533-X (collection of articles from Isaac Asimov's Science Fiction Magazine)
• 2001 Did Adam and Eve Have Navels?: Debunking Pseudoscience, W.W. Norton & Company; ISBN 0-393-32238-6 (collection of "Notes of a Fringe Watcher" columns)
• 2002 Martin Gardner's Favorite Poetic Parodies Prometheus Books; ISBN 1-57392-925-5
• 2003 Are Universes Thicker Than Blackberries?: Discourses on Gödel, Magic Hexagrams, Little Red Riding Hood, and Other Mathematical and Pseudoscientific Topics, ISBN 0-393-05742-9 (collection of "Notes of a Fringe Watcher" columns and others. The title alludes to Charles Sanders Peirce's ridiculing of Laplace's "principle of insufficient reason", which suggested uniform prior probability for Bayesian statistics.)
• 2004 Smart Science Tricks, Sterling; ISBN 1-4027-0910-2
• 2007 The Jinn from Hyperspace: And Other Scribblings—both Serious and Whimsical, Prometheus Books; ISBN 1-5910-2565-6
• 2008 Bamboozlers: The Book of Bankable Bar Betchas, Brain Bogglers, Belly Busters & Bewitchery by Diamond Jim Tyler, Diamond Jim Productions; ISBN 0-967-60181-9 (introduction)
• 2009 When You Were a Tadpole and I was a Fish and other Speculations about This and That, Hill and Wang; ISBN 0-8090-8737-2
• 2009 The Upside-Down World of Gustave Verbeek, Sunday Press Books; ISBN 0-9768885-7-2 (introduction)

• (For a downloadable version of The Mathemagician and the Pied Puzzler, another tribute book, see external links below)

Collected Scientific American columns

Fifteen books altogether—what Don Knuth calls "the Canon"—encompass Gardner's columns from Scientific American:

• Hexaflexagons and Other Mathematical Diversions: The First Scientific American Book of Puzzles and Games 1959; University of Chicago Press 1988 ISBN 0-226-28254-6 (originally published as The Scientific American Book of Mathematical Puzzles and Diversions)
• The Second Scientific American Book of Mathematical Puzzles and Diversions 1961; University of Chicago Press 1987; ISBN 0-226-28253-8
• Martin Gardner's New Mathematical Diversions from Scientific American 1966; Simon and Schuster; reprinted by Mathematical Association of America 1995
• Numerology of Dr. Matrix 1967; reprinted/expanded as The Magic Numbers of Dr. Matrix; Prometheus Books; ISBN 0-87975-281-5 / ISBN 0-87975-282-3
• Unexpected Hangings, and Other Mathematical Diversions Simon & Schuster 1968; reprinted by University of Chicago Press, 1991 ISBN 0-671-20073-9
• The Sixth Scientific American Book of Mathematical Puzzles and Diversions Simon & Schuster 1971
• Mathematical Carnival Vintage 1975; reprinted by Mathematical Association of America
• Mathematical Magic Show Vintage 1977; reprinted by Mathematical Association of America
• Mathematical Circus Vintage 1979; reprinted by Mathematical Association of America
• Wheels, Life, and Other Mathematical Amusements 1983; W. H. Freeman & Co. ISBN 0-7167-1589-9
• Knotted Doughnuts and Other Mathematical Entertainments 1986; W. H. Freeman & Co. ISBN 0-7167-1799-9
• Time Travel and Other Mathematical Bewilderments 1988; W. H. Freeman & Co. ISBN 0-7167-1925-8
• Penrose Tiles to Trapdoor Ciphers 1989; W. H. Freeman & Co. ISBN 0-7167-1987-8; reprinted by Mathematical Association of America
• Fractal Music, Hypercards and More 1991; W. H. Freeman
• Last Recreations: Hydras, Eggs, and other Mathematical Mystifications 1997; Springer Verlag; ISBN 0-387-94929-1

Three other books collect some or all of Gardner's columns from Scientific American:

• The Colossal Book of Mathematics: Classic Puzzles, Paradoxes, and Problems 2001; W.W. Norton & Company; ISBN 0-393-02023-1 (a "best of" collection)
• Martin Gardner's Mathematical Games 2005; Mathematical Association of America; ISBN 0-88385-545-3 (CD-ROM of all fifteen books above, encompassing all articles in the column)
• The Colossal Book of Short Puzzles and Problems 2006; W.W. Norton & Company; ISBN 0-393-06114-0

See also

• Bulgarian solitaire
• Heegner number
• Russell's paradox
• Three Prisoners problem
• Newcomb's paradox

External links

• Martin Gardner Papers
• Template:Worldcat id
• Seth Schoen's Gardner bibliography
• Martin Gardner: A "Documentary" by Dana Richards

Interviews

• 1979 interview with Gardner by Anthony Barcellos for the College Mathematics Journal
• 1998 interview with Gardner by Kendrick Frazier for the Skeptical Inquirer
• 2004 interview with Gardner (PDF) by Allyn Jackson for the AMS Notices
• The Martin Gardner Interview (2005) - Cambridge University Press blog - Part 1
• 2006 interview with Gardner by Colm Mulcahy for the MAA Online website

Tributes

• James Randi's notes on Gardner, written in the 1960s
• A short Martin Gardner Bio
• About Gathering for Gardner
• (2587) Gardner asteroid
• On-line Gardner bibliography
• Gathering for Gardner conference site, G4G, includes downloadable Gardner tribute e-book (The Mathemagician and Pied Puzzler)
• Tribute at Scientific American

Obituaries

• Martin Gardner, Puzzler and Polymath, Dies at 95, New York Times, 23 May 2010
• A tribute to Martin Gardner, The Times, 24 May 2010
• Martin Gardner, 95, a journalist, provided in-depth analysis of Lewis Carroll's Cheshire Cat, Washington Post obituary, 24 May 2010
• Martin Gardner 1914 to 2010 by John Helvin in Mystery Magazine (June 2010)