111 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| 1951 | 67 | Short Fiction | The Tree | New Worlds, Autumn 1951 |
| January 1951 | fep | Essay | Contributors... | Worlds Beyond, January 1951 |
| January 1951 | 28 | Short Fiction | Tree of Wrath | Worlds Beyond, January 1951 |
| March 1951 | 84 | Short Fiction | Balance | New Worlds, Spring 1951 |
| March 1951 | 84 | Short Fiction | Socrates | Galaxy Science Fiction, March 1951 |
| May 1951 | 124 | Short Fiction | Man of Destiny | Galaxy Science Fiction, May 1951 |
| 1952 | 4 | Short Fiction | Resurrection | Science-Fantasy, Spring 1952 |
| May 1952 | 40 | Short Fiction | Breaking Point | New Worlds, May 1952 |
| 1953 | 37 | Short Fiction | Mr. Kowtshook | Science-Fantasy, Spring 1953 |
| 1953 | 115 | Short Fiction | Relativity | Space Science Fiction [UK], Volume 1 No. 3 |
| February 1953 | 105 | Short Fiction | Aristotle | Science Fiction Quarterly, February 1953 |
| March 1953 | 112 | Short Fiction | The Drop | Galaxy Science Fiction, March 1953 |
| March 1953 | 64 | Short Fiction | The Prophet | New Worlds Science Fiction, March 1953 |
| April 1953 | 137 | Essay | SF Under a Cloud | Authentic Science Fiction Monthly, April 15, 1953 |
| July 1953 | 143|143.3 | Essay | Letter (Authentic Science Fiction Monthly, July 15, 1953): John Christopher Repies | Authentic Science Fiction Monthly, July 15, 1953 |
| August 1953 | 20 | Short Fiction | Planet of Change | Authentic Science Fiction Monthly, August 15, 1953 |
| November 1953 | 112 | Short Fiction | Blemish | Authentic Science Fiction Monthly, November 15, 1953 |
| December 1953 | 122 | Short Fiction | Museum Piece | Orbit, No. 2 |
| February 1954 | 72 | Short Fiction | Rocket to Freedom | Imagination, February 1954 |
| May 1954 | 136|136.1 | Review | The Twenty-Second Century | Authentic Science Fiction Monthly, May 15, 1954 |
| June 1954 | 61 | Short Fiction | Escape Route | New Worlds Science Fiction, June 1954 |
| October 1954 | 62 | Short Fiction | The Name of This City | If, October 1954 |
| November 1954 | 98 | Short Fiction | Vacation | If, November 1954 |
| December 1954 | 64 | Short Fiction | Talent | Nebula Science Fiction, Number 11 |
| December 1954 | 47 | Short Fiction | Talent for the Future | Fantastic Universe, December 1954 |
| January 1955 | 43 | Short Fiction | Conspiracy | Authentic Science Fiction Monthly, January 15, 1955 |
| March 1955 | 46 | Short Fiction | Manna | New Worlds Science Fiction, March 1955 |
| May 1955 | 127 | Review | The Year of the Comet | New Worlds Science Fiction, May 1955 |
| June 1955 | 128 | Review | The Year of the Comet | Astounding Science Fiction, June 1955 |
| June 1955 | 119|119.3 | Review | The Year of the Comet | Authentic Science Fiction Monthly, June 15, 1955 |
| July 1955 | 57 | Short Fiction | Decoy | Science Fiction Stories, July 1955 |
| September 1955 | 104 | Review | The Year of the Comet | Nebula Science Fiction, Number 13 |
| October 1956 | 74 | Essay | The Decline and Fall of the Bug-Eyed Monster | The Magazine of Fantasy and Science Fiction, October 1956 |
| January 1957 | 104 | Short Fiction | Occupational Risk | Science Fiction Stories, January 1957 |
| February 1957 | 156 | Review | The Death of Grass | Authentic Science Fiction Monthly, February 1957 |
| March 1957 | 116 | Short Fiction | The Gardener | Tales of the Frightened, Spring 1957 |
| April 1957 | 25 | Serial | No Blade of Grass (Part 1 of 7) | The Saturday Evening Post, April 27, 1957 |
| April 1957 | 68 | Short Fiction | The Noon's Repose | Infinity Science Fiction, April 1957 |
| May 1957 | 40 | Serial | No Blade of Grass (Part 2 of 7) | The Saturday Evening Post, May 4, 1957 |
| May 1957 | Serial | No Blade of Grass (Part 3 of 7) | The Saturday Evening Post, May 11, 1957 | |
| May 1957 | 51 | Serial | No Blade of Grass (Part 4 of 7) | The Saturday Evening Post, May 18, 1957 |
| May 1957 | 53 | Serial | No Blade of Grass (Part 5 of 7) | The Saturday Evening Post, May 25, 1957 |
| June 1957 | Serial | No Blade of Grass (Part 6 of 7) | The Saturday Evening Post, June 1, 1957 | |
| June 1957 | 49 | Serial | No Blade of Grass (Part 7 of 7) | The Saturday Evening Post, June 8, 1957 |
| August 1957 | 4 | Serial | Year of the Comet (Complete Novel) | Satellite Science Fiction, August 1957 |
| October 1957 | 54 | Short Fiction | A Time of Peace | Saturn, October 1957 |
| October 1957 | 112 | Short Fiction | Doom Over Kareeta | Satellite Science Fiction, October 1957 |
| October 1957 | 104 | Review | No Blade of Grass | Infinity Science Fiction, October 1957 |
| October 1957 | 102 | Review | No Blade of Grass | The Magazine of Fantasy and Science Fiction, October 1957 |
| October 1957 | 156 | Review | No Blade of Grass | Astounding Science Fiction, October 1957 |
| June 1958 | 87 | Review | No Blade of Grass | Vanguard Science Fiction, June 1958 |
| June 1958 | 101 | Essay | Science and Anti-Science | Fantastic Universe, June 1958 |
| February 1959 | 149 | Review | No Blade of Grass | Astounding Science Fiction, February 1959 |
| March 1959 | 4 | Short Fiction | A World of Slaves | Satellite Science Fiction, March 1959 |
| July 1959 | 31 | Short Fiction | Summer's Lease | Argosy, July 1959 |
| October 1959 | 6 | Short Fiction | Winter Boy, Summer Girl | Fantastic Science Fiction Stories, October 1959 |
| November 1959 | 130 | Review | No Blade of Grass | Science Fiction Stories, November 1959 |
| May 1960 | 93 | Review | Planet in Peril | If, May 1960 |
| July 1960 | 164 | Review | Planet in Peril | Astounding/Analog Science Fact & Fiction, July 1960 |
| December 1960 | Review | 22nd Century | Vector 10, Winter 1960 | |
| August 1962 | 125|125.2 | Review | The Long Winter | Analog Science Fact -> Science Fiction, August 1962 |
| August 1963 | 90 | Review | The Twenty-Second Century | Analog Science Fact -> Science Fiction, August 1963 |
| December 1963 | 79 | Review | The Long Winter | The Magazine of Fantasy and Science Fiction, December 1963 |
| December 1963 | 92 | Review | The Long Winter | Analog Science Fact -> Science Fiction, December 1963 |
| November 1964 | 89 | Review | Sweeney's Island | Analog Science Fact -> Science Fiction, November 1964 |
| April 1965 | 70 | Review | Sweeney's Island | The Magazine of Fantasy and Science Fiction, April 1965 |
| September 1965 | 70 | Review | The Possessors | The Magazine of Fantasy and Science Fiction, September 1965 |
| November 1965 | 119 | Short Fiction | A Few Kindred Spirits | The Magazine of Fantasy and Science Fiction, November 1965 |
| March 1966 | 53 | Review | The Ragged Edge | The Magazine of Fantasy and Science Fiction, March 1966 |
| June 1966 | 146 | Review | The Ragged Edge | Analog Science Fiction/Science Fact, June 1966 |
| August 1966 | 25 | Review | The Possessors | Australian Science Fiction Review, August 1966 |
| September 1966 | 10 | Short Fiction | Rendezvous | Playboy, September 1966 |
| November 1966 | 10 | Short Fiction | Communication Problem | Argosy, November 1966 |
| January 1967 | 6 | Serial | The Little People (Part 1 of 3) | The Magazine of Fantasy and Science Fiction, January 1967 |
| February 1967 | 65 | Serial | The Little People (Part 2 of 3) | The Magazine of Fantasy and Science Fiction, February 1967 |
| March 1967 | 86 | Serial | The Little People (Part 3 of 3) | The Magazine of Fantasy and Science Fiction, March 1967 |
| June 1967 | 4 | Review | The Ragged Edge | Amazing Stories, June 1967 |
| January 1968 | 165 | Review | The White Mountains | Analog Science Fiction -> Science Fact, January 1968 |
| July 1968 | 164 | Review | No Blade of Grass | Analog Science Fiction -> Science Fact, July 1968 |
| July 1968 | 164 | Review | Sweeney's Island | Analog Science Fiction -> Science Fact, July 1968 |
| January 1969 | 162 | Review | The Pool of Fire | Analog Science Fiction/Science Fact, January 1969 |
| April 1969 | 162 | Review | Pendulum | Analog Science Fiction/Science Fact, April 1969 |
| September 1969 | 167 | Review | The Ragged Edge | Analog Science Fiction/Science Fact, September 1969 |
| October 1970 | 107 | Short Fiction | A Cry of Children | Argosy, October 1970 |
| April 1971 | 42 | Review | The City of Gold and Lead | The WSFA Journal #76, April-May 1971 |
| April 1971 | 42 | Review | The Pool of Fire | The WSFA Journal #76, April-May 1971 |
| April 1971 | 42 | Review | The White Mountains | The WSFA Journal #76, April-May 1971 |
| September 1971 | 164 | Review | The Prince in Waiting | Analog Science Fiction/Science Fact, September 1971 |
| February 1972 | 109|2 | Short Fiction | The Island of Bright Birds | Ellery Queen's Mystery Magazine, February 1972 |
| October 1972 | 168 | Review | The Sword of the Spirits | Analog Science Fiction/Science Fact, October 1972 |
| December 1972 | 151 | Short Fiction | Specimen | The Magazine of Fantasy and Science Fiction, December 1972 |
| October 1974 | 117 | Short Fiction | The Long Night | Galaxy, October 1974 |
| July 1975 | 12 | Review | No Blade of Grass | The Science Fiction Review (Monthly), July 1975 |
| August 1975 | 27 | Review | No Blade of Grass | Delap's F & SF Review, August 1975 |
| 1976 | 23 | Review | Wild Jack | Luna Monthly, #66, Winter 1976 |
| February 1976 | 171 | Review | No Blade of Grass | Analog Science Fiction/Science Fact, February 1976 |
| June 1976 | 82 | Review | Wild Jack | Foundation, #10 June 1976 |
| July 1984 | 173 | Review | Fireball | Isaac Asimov's Science Fiction Magazine, July 1984 |
| August 1984 | 45 | Review | New Found Land | Fantasy Review, August 1984 |
| June 1986 | Review | The Death of Grass | Paperback Inferno, #60 | |
| August 1986 | Review | The Caves of Night | Paperback Inferno, #61 | |
| February 1991 | 22 | Short Fiction | A Journey South | Interzone, February 1991 |
| March 1991 | 38 | Review | When the Tripods Came | Aboriginal Science Fiction, March-April 1991 |
| September 1994 | 35 | Review | A Dusk of Demons | Locus, #404 September 1994 |
| November 2000 | 4 | Serial | Bad Dream (Part 1 of 3) | Spectrum SF, #4 November |
| February 2001 | 40 | Serial | Bad Dream (Part 2 of 3) | Spectrum SF, #5 February |
| March 2001 | 14 | Interview | A Lot of Fun Trying ... | Interzone, March 2001 |
| July 2001 | 84 | Serial | Bad Dream (Part 3 of 3) | Spectrum SF, #6 July |
| August 2001 | 47|47.04 | Review | Bad Dream (Part 2 of 3) | Science Fiction Chronicle, #215 August 2001 |
| January 2002 | 23 | Review | Bad Dream | Vector 221 |
| April 2009 | Review | The Death of Grass | StarShipSofa, No 81 |
46 English-language books
According to , his legal first name at birth was "Sam" as opposed to "Samuel"; he later "adopted the first name Christopher on confirmation into the Church of England". It's not entirely clear whether the name was legally changed.
LCCN Authorities page says: "Biog. resource center, July 26, 2005 ((Christopher) Samuel Youd; b. Apr. 16, 1922, Knowsley, England". [The Metropolitan Borough of Knowsley in Merseyside, North West England, was formed on 1974-04-01 within the boundaries of the historic county of Lancashire.]