260 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| July 1931 | 17 | Short Fiction | Wraiths of the Sea | Mind Magic, July 1931 |
| January 1933 | 136 | Essay | Letter (Strange Tales of Mystery and Terror, January 1933): Expert Opinion | Strange Tales of Mystery and Terror, January 1933 |
| September 1933 | Short Fiction | The Panelled Room | The Westminster Magazine, September 1933 | |
| March 1934 | 914|914.2 | Poem | To a Spaceship | Wonder Stories, March 1934 |
| May 1934 | 21 | Short Fiction | The Cossacks Ride Hard | Marvel Tales, May 1934 |
| March 1939 | Short Fiction | Motive | Top-Notch Detective, March 1939 | |
| May 1941 | 120|120.3 | Essay | Letter (Weird Tales, May 1941): The Lovecraft Tradition | Weird Tales, May 1941 |
| 1942 | 216 | Short Fiction | Mrs. Corter Makes Up Her Mind | Fantastic Adventures Quarterly, Winter 1942 |
| January 1942 | 125|125.1 | Essay | Letter (Weird Tales, January 1942): Outstanding Service | Weird Tales, January 1942 |
| February 1942 | 13 | Review | Someone in the Dark | Thrilling Wonder Stories, February 1942 |
| May 1942 | 123|123.1 | Review | Someone in the Dark | Super Science Stories, May 1942 |
| June 1942 | 93 | Review | Someone in the Dark | Future Combined with Science Fiction, June 1942 |
| January 1943 | 105 | Short Fiction | McElwin's Glass | Weird Tales, January 1943 |
| March 1943 | 37 | Short Fiction | No Light for Uncle Henry | Weird Tales, March 1943 |
| May 1943 | 21 | Short Fiction | A Wig for Miss DeVore | Weird Tales, May 1943 |
| September 1943 | 35 | Short Fiction | Baynter's Imp | Weird Tales, September 1943 |
| November 1943 | 85 | Short Fiction | A Thin Gentleman with Gloves | Weird Tales, November 1943 |
| March 1944 | 107 | Essay | Letter (Weird Tales, March 1944): Nearing the Century Mark | Weird Tales, March 1944 |
| March 1944 | 6 | Short Fiction | The Trail of Cthulhu | Weird Tales, March 1944 |
| July 1944 | 86 | Short Fiction | Lady Macbeth of Pimley Square | Weird Tales, July 1944 |
| September 1944 | 52 | Short Fiction | Pacific 421 | Weird Tales, September 1944 |
| November 1944 | 8 | Short Fiction | The Dweller in Darkness | Weird Tales, November 1944 |
| January 1945 | 34 | Short Fiction | The Inverness Cape | Weird Tales, January 1945 |
| April 1945 | 54 | Short Fiction | Carousel | Fantastic Adventures, April 1945 |
| May 1945 | 52 | Short Fiction | The Lost Day | Weird Tales, May 1945 |
| July 1945 | 4 | Short Fiction | The Watcher from the Sky | Weird Tales, July 1945 |
| September 1945 | 17 | Short Fiction | The God-Box | Weird Tales, September 1945 |
| November 1945 | 26 | Short Fiction | Mrs. Lannisfree | Weird Tales, November 1945 |
| January 1946 | 66 | Short Fiction | Pikeman | Weird Tales, January 1946 |
| November 1946 | 48 | Short Fiction | A Collector of Stones | Weird Tales, November 1946 |
| February 1947 | 45 | Short Fiction | The Shuttered House | Avon Fantasy Reader, No. 1 |
| September 1947 | 62 | Short Fiction | The Occupant of the Crypt | Weird Tales, September 1947 |
| December 1947 | 118 | Essay | Letter (Famous Fantastic Mysteries, December 1947): Correction by August Derleth | Famous Fantastic Mysteries, December 1947 |
| 1948 | 86 | Review | Addams and Evil | The Arkham Sampler, Spring 1948 |
| 1948 | 83 | Essay | Books of Magical Lore | The Arkham Sampler, Autumn 1948 |
| 1948 | 78 | Review | Edison's Conquest of Mars | The Arkham Sampler, Winter 1948 |
| 1948 | 78 | Essay | From the Fan Presses | The Arkham Sampler, Winter 1948 |
| 1948 | 84 | Essay | Ghosts in Great Britain | The Arkham Sampler, Spring 1948 |
| 1948 | 84 | Review | Ghosts in Irish Houses | The Arkham Sampler, Spring 1948 |
| 1948 | 75 | Review | Greener Than You Think | The Arkham Sampler, Winter 1948 |
| 1948 | 15 | Essay | History and Chronology of the Necronomicon Together with Some Pertinent Paragraphs | The Arkham Sampler, Winter 1948 |
| 1948 | 23 | Essay | Introduction: Strange Ports of Call | The Arkham Sampler, Winter 1948 |
| 1948 | 75 | Review | Man Into Beast: Strange Tales of Transformation | The Arkham Sampler, Winter 1948 |
| 1948 | 90 | Review | Murder: Plain and Fanciful | The Arkham Sampler, Summer 1948 |
| 1948 | 84 | Review | Not Exactly Ghosts | The Arkham Sampler, Spring 1948 |
| 1948 | 78 | Review | Of Worlds Beyond: The Science of Science-Fiction Writing | The Arkham Sampler, Winter 1948 |
| 1948 | 49 | Essay | On "The Lurker at the Threshold" | The Arkham Sampler, Spring 1948 |
| 1948 | 8 | Poem | Providence: Two Gentlemen Meet at Midnight | The Arkham Sampler, Autumn 1948 |
| 1948 | 94 | Review | Sac Prairie People | The Arkham Sampler, Summer 1948 |
| 1948 | 87 | Review | Strange Ports of Call: 20 Masterpieces of Science-Fiction | The Arkham Sampler, Spring 1948 |
| 1948 | 90 | Essay | Studies in Murder | The Arkham Sampler, Summer 1948 |
| 1948 | 82 | Review | Tales of Horror and the Supernatural | The Arkham Sampler, Autumn 1948 |
| 1948 | Editor | The Arkham Sampler - 1948 | The Arkham Sampler, Winter 1948 | |
| 1948 | 82 | Review | The Checklist of Fantastic Literature | The Arkham Sampler, Winter 1948 |
| 1948 | 78 | Review | The Forbidden Garden | The Arkham Sampler, Winter 1948 |
| 1948 | 86 | Essay | The Macabre in Pictures | The Arkham Sampler, Spring 1948 |
| 1948 | 82 | Essay | The Machen Collection | The Arkham Sampler, Autumn 1948 |
| 1948 | 84 | Review | The Mirror of Magic: A History of Magic in the Western World | The Arkham Sampler, Autumn 1948 |
| 1948 | 90 | Review | The Murder of Maria Marten | The Arkham Sampler, Summer 1948 |
| 1948 | 87 | Review | The Night Side: Masterpieces of the Strange and Terrible | The Arkham Sampler, Winter 1948 |
| 1948 | 89 | Review | The Prevalence of Witches | The Arkham Sampler, Summer 1948 |
| 1948 | 82 | Essay | The Shasta Checklist | The Arkham Sampler, Winter 1948 |
| 1948 | 87 | Review | The Sleeping and the Dead: 30 Uncanny Tales | The Arkham Sampler, Winter 1948 |
| 1948 | 84 | Review | The Travelling Grave and Other Stories | The Arkham Sampler, Spring 1948 |
| 1948 | 75 | Essay | Two Novels and an Anthology | The Arkham Sampler, Winter 1948 |
| 1948 | 78 | Review | Venus Equilateral | The Arkham Sampler, Winter 1948 |
| 1948 | 86 | Review | What Am I Doing Here? | The Arkham Sampler, Spring 1948 |
| 1948 | 89 | Essay | Wit and Satire | The Arkham Sampler, Summer 1948 |
| 1948 | 84 | Review | Witches and Fishes | The Arkham Sampler, Autumn 1948 |
| 1948 | 75 | Review | Zotz! | The Arkham Sampler, Winter 1948 |
| February 1948 | 114 | Short Fiction | The Lonesome Place | Famous Fantastic Mysteries, February 1948 |
| March 1948 | 3 | Essay | Letter (Weird Tales, March 1948): 25th Anniversary Issue | Weird Tales, March 1948 |
| March 1948 | 44 | Short Fiction | Something in Wood | Weird Tales, March 1948 |
| April 1948 | 122 | Essay | Letter (Famous Fantastic Mysteries, April 1948): August Derleth Replies | Famous Fantastic Mysteries, April 1948 |
| May 1948 | 49 | Short Fiction | Saunder's Little Friend | Weird Tales, May 1948 |
| September 1948 | 4 | Short Fiction | The Whippoorwills in the Hills | Weird Tales, September 1948 |
| November 1948 | 105 | Review | Strange Ports of Call | Astounding Science Fiction, November 1948 |
| November 1948 | 176 | Review | Strange Ports of Call | Startling Stories, November 1948 |
| 1949 | 94 | Review | A Martian Odyssey and Others | The Arkham Sampler, Summer 1949 |
| 1949 | 94 | Essay | A Mixed Bag | The Arkham Sampler, Summer 1949 |
| 1949 | 110 | Essay | A Selected Shelf of Fantasy | The Arkham Sampler, Autumn 1949 |
| 1949 | 91 | Review | Darker Than You Think | The Arkham Sampler, Spring 1949 |
| 1949 | 94 | Review | Descent Into Hell | The Arkham Sampler, Summer 1949 |
| 1949 | 94 | Review | Invasion from Mars | The Arkham Sampler, Summer 1949 |
| 1949 | 81 | Essay | Jamesian Spectres | The Arkham Sampler, Spring 1949 |
| 1949 | 91 | Review | Lest Darkness Fall | The Arkham Sampler, Spring 1949 |
| 1949 | 94 | Review | Life on Other Worlds | The Arkham Sampler, Summer 1949 |
| 1949 | 110 | Review | Many Dimensions | The Arkham Sampler, Autumn 1949 |
| 1949 | 91 | Essay | Messrs. Sturgeon, Williamson & DeCamp | The Arkham Sampler, Spring 1949 |
| 1949 | 105 | Essay | Nelson Bond's New Stories | The Arkham Sampler, Autumn 1949 |
| 1949 | 89 | Review | Not Long for This World | The Arkham Sampler, Spring 1949 |
| 1949 | Editor | The Arkham Sampler - 1949 | The Arkham Sampler, Winter 1949 | |
| 1949 | 110 | Review | The Best Science-Fiction Stories: 1949 | The Arkham Sampler, Autumn 1949 |
| 1949 | 110 | Review | The Big Eye | The Arkham Sampler, Autumn 1949 |
| 1949 | 110 | Review | The Dowry | The Arkham Sampler, Autumn 1949 |
| 1949 | 94 | Review | The End of the World | The Arkham Sampler, Summer 1949 |
| 1949 | 81 | Review | The Ghostly Tales of Henry James | The Arkham Sampler, Spring 1949 |
| 1949 | 94 | Review | The Histrionic Mr. Poe | The Arkham Sampler, Summer 1949 |
| 1949 | 84 | Review | The Other Side of the Moon | The Arkham Sampler, Summer 1949 |
| 1949 | 46 | Poem | The Pool in the Wood | The Arkham Sampler, Winter 1949 |
| 1949 | 70 | Essay | The Realm of Redonda | The Arkham Sampler, Spring 1949 |
| 1949 | 105 | Review | The Thirty-First of February | The Arkham Sampler, Autumn 1949 |
| 1949 | 91 | Review | The Wheels of If | The Arkham Sampler, Spring 1949 |
| 1949 | 110 | Review | War in Heaven | The Arkham Sampler, Autumn 1949 |
| 1949 | 91 | Review | Without Sorcery | The Arkham Sampler, Spring 1949 |
| March 1949 | 58 | Short Fiction | The Testament of Claiborne Boyd | Weird Tales, March 1949 |
| May 1949 | 88 | Short Fiction | Kingsridge 214 | Weird Tales, May 1949 |
| May 1949 | 144|144.1 | Essay | Letter (Astounding, May 1949): Sorry, Derleth—Guess Ted's Having Trouble with His Finger Counting! | Astounding Science Fiction, May 1949 |
| July 1949 | 120 | Review | Strange Ports of Call | Fantastic Novels Magazine, July 1949 |
| September 1949 | 35 | Short Fiction | The Slayers and the Slain | Weird Tales, September 1949 |
| November 1949 | 53 | Short Fiction | Twilight Play | Weird Tales, November 1949 |
| December 1949 | 150 | Review | Strange Ports of Call | Amazing Stories, December 1949 |
| 1950 | 126 | Short Fiction | The Fifth Child | Fantastic Adventures Quarterly, Winter 1950 |
| 1950 | 166 | Short Fiction | The Island Out of Space | Amazing Stories Quarterly (Reissue), Winter 1950 |
| January 1950 | 22 | Short Fiction | The Ormolu Clock | Weird Tales, January 1950 |
| July 1950 | 72 | Short Fiction | The Closing Door | Weird Tales, July 1950 |
| July 1950 | 74 | Short Fiction | The Thing That Walked on the Wind | Avon Fantasy Reader, No. 13 |
| September 1950 | 64 | Short Fiction | Potts' Triumph | Weird Tales, September 1950 |
| October 1950 | 44 | Short Fiction | A Room in a House | The Magazine of Fantasy and Science Fiction, Fall 1950 |
| October 1950 | 143 | Review | Beyond Time and Space | Galaxy Science Fiction, October 1950 |
| October 1950 | 82 | Review | Beyond Time and Space | The Magazine of Fantasy and Science Fiction, Fall 1950 |
| 1951 | 48 | Short Fiction | The Other Side of the Wall | 10 Story Fantasy, Spring 1951 |
| January 1951 | 100 | Review | Beyond Time and Space | Other Worlds Science Stories, January 1951 |
| January 1951 | 50 | Short Fiction | Something from Out There | Weird Tales, January 1951 |
| March 1951 | 146 | Review | Beyond Time & Space | Astounding Science Fiction, March 1951 |
| March 1951 | 69 | Review | Beyond Time and Space | Future Combined with Science Fiction Stories, March 1951 |
| May 1951 | 52 | Short Fiction | The Keeper of the Key | Weird Tales, May 1951 |
| July 1951 | 63 | Short Fiction | A Knocking in the Wall | Weird Tales, July 1951 |
| October 1951 | 58 | Review | Far Boundaries | The Magazine of Fantasy and Science Fiction, October 1951 |
| December 1951 | 110 | Review | Far Boundaries | Galaxy Science Fiction, December 1951 |
| December 1951 | 150 | Review | Far Boundaries | Amazing Stories, December 1951 |
| 1952 | 64 | Short Fiction | The Adventure of the Sotheby Salesman | The Mysterious Traveler Mystery Reader, No. 5 |
| January 1952 | 8 | Short Fiction | The Black Island | Weird Tales, January 1952 |
| February 1952 | 159 | Review | Far Boundaries | Astounding Science Fiction, February 1952 |
| February 1952 | 142 | Review | The Outer Reaches | Startling Stories, February 1952 |
| March 1952 | 150 | Review | The Outer Reaches | Amazing Stories, March 1952 |
| March 1952 | 70 | Short Fiction | The Place of Desolation | Weird Tales, March 1952 |
| April 1952 | 119 | Review | The Outer Reaches | Galaxy Science Fiction, April 1952 |
| May 1952 | 68 | Short Fiction | The Night Road | Weird Tales, May 1952 |
| May 1952 | 161 | Review | The Outer Reaches | Astounding Science Fiction, May 1952 |
| July 1952 | 138 | Short Fiction | McIlvaine's Star | If, July 1952 |
| August 1952 | 70 | Short Fiction | "Who Shall I Say Is Calling?" | The Magazine of Fantasy and Science Fiction, August 1952 |
| August 1952 | 79 | Review | Far Boundaries | Science Fiction Quarterly, August 1952 |
| August 1952 | 49 | Review | The Outer Reaches | Fantastic Science Fiction, August 1952 |
| August 1952 | 79 | Review | The Outer Reaches | Science Fiction Quarterly, August 1952 |
| September 1952 | 149 | Review | Night's Yawning Peal | Amazing Stories, September 1952 |
| September 1952 | 44 | Review | Night's Yawning Peal | The Magazine of Fantasy and Science Fiction, September 1952 |
| September 1952 | 96 | Review | Night's Yawning Peal | Weird Tales, September 1952 |
| September 1952 | 61 | Short Fiction | The Lost Path | Weird Tales, September 1952 |
| December 1952 | 34 | Review | Beyond Time and Space | Fantastic Science Fiction, December 1952 |
| January 1953 | 68 | Short Fiction | "Sexton, Sexton, in the Wall" | Weird Tales, January 1953 |
| January 1953 | 8|8.2 | Review | Beachheads in Space | Weird Tales, January 1953 |
| February 1953 | 98 | Review | Beachheads in Space | Galaxy Science Fiction, February 1953 |
| May 1953 | 47 | Short Fiction | A Corner for Lucia | Weird Tales, May 1953 |
| May 1953 | 90 | Review | Worlds of Tomorrow | The Magazine of Fantasy and Science Fiction, May 1953 |
| June 1953 | 67 | Review | Beachheads in Space | Dynamic Science Fiction, June 1953 |
| June 1953 | 107 | Short Fiction | The Maugham Obsession | Fantastic Universe, June-July 1953 |
| June 1953 | 124 | Review | Worlds of Tomorrow | Galaxy Science Fiction, June 1953 |
| July 1953 | 15 | Short Fiction | The Adventure of the Snitch in Time | The Magazine of Fantasy and Science Fiction, July 1953 |
| July 1953 | 12 | Short Fiction | The House in the Valley | Weird Tales, July 1953 |
| July 1953 | 96|96.2 | Review | Worlds of Tomorrow | Weird Tales, July 1953 |
| August 1953 | Short Fiction | The Detective and the Senator | The Saint Detective Magazine, Aug/Sept 1953 | |
| September 1953 | 3 | Short Fiction | Invasion from the Microcosm | Orbit, No. 1 |
| September 1953 | 66 | Short Fiction | The Ebony Stick | Weird Tales, September 1953 |
| September 1953 | fep | Essay | We Have With Us (Weird Tales, September 1953) | Weird Tales, September 1953 |
| September 1953 | 84 | Review | Worlds of Tomorrow | Future Science Fiction, September 1953 |
| October 1953 | 65 | Review | Worlds of Tomorrow | Science-Fiction Plus, October 1953 |
| November 1953 | 118 | Review | Beachheads in Space | Astounding Science Fiction, November 1953 |
| November 1953 | 117 | Short Fiction | The Disc Recorder | Weird Tales, November 1953 |
| December 1953 | 48 | Short Fiction | A Traveler in Time | Orbit, No. 2 |
| December 1953 | 120 | Review | Worlds of Tomorrow | Astounding Science Fiction, December 1953 |
| April 1954 | 94 | Short Fiction | The Remarkable Dingdong | Spaceway, April 1954 |
| May 1954 | 84 | Short Fiction | The Place in the Woods | Weird Tales, May 1954 |
| July 1954 | 113|113.2 | Review | Beachheads In Space | Authentic Science Fiction Monthly, July 15, 1954 |
| July 1954 | 2 | Short Fiction | The Survivor | Weird Tales, July 1954 |
| July 1954 | 92 | Short Fiction | The Ungrateful House | Orbit, July-August 1954 |
| August 1954 | 118 | Review | Beachheads In Space | Nebula Science Fiction, Number 9 |
| August 1954 | 78 | Review | Time to Come | The Magazine of Fantasy and Science Fiction, August 1954 |
| September 1954 | 93 | Review | Portals of Tomorrow | The Magazine of Fantasy and Science Fiction, September 1954 |
| September 1954 | 56 | Short Fiction | The Thinker and the Thought | Orbit, September-October 1954 |
| October 1954 | 51 | Review | Portals of Tomorrow | Galaxy Science Fiction, October 1954 |
| October 1954 | 109 | Review | Portals of Tomorrow | Imagination, October 1954 |
| November 1954 | 88 | Short Fiction | The Penfield Misadventure | Orbit, November-December 1954 |
| November 1954 | 120 | Review | Time to Come | Galaxy Science Fiction, November 1954 |
| December 1954 | 130|130.2 | Review | Worlds of Tomorrow | Authentic Science Fiction Monthly, December 15, 1954 |
| March 1955 | 123|123.3 | Review | Portals of Tomorrow | Astounding Science Fiction, March 1955 |
| June 1955 | 42 | Short Fiction | The Adventure of the Ball of Nostradamus | The Magazine of Fantasy and Science Fiction, June 1955 |
| July 1956 | 128 | Review | The Other Side of the Moon | New Worlds Science Fiction, July 1956 |
| July 1956 | 158|158.2 | Review | The Other Side of the Moon | Authentic Science Fiction Monthly, July 15, 1956 |
| February 1957 | 53 | Short Fiction | The Dark Boy | The Magazine of Fantasy and Science Fiction, February 1957 |
| May 1957 | 100 | Short Fiction | The Murky Glass | Saturn, May 1957 |
| July 1957 | 93 | Review | August Derleth: Thirty Years of Writing, 1926-1956 | The Magazine of Fantasy and Science Fiction, July 1957 |
| July 1957 | 53 | Short Fiction | The Martian Artifact | Saturn, July 1957 |
| July 1957 | 4 | Short Fiction | The Seal of the Damned | Fantastic Universe, July 1957 |
| July 1957 | 92 | Review | The Survivor and Others | The Magazine of Fantasy and Science Fiction, July 1957 |
| October 1957 | 44 | Short Fiction | The Lamp of Alhazred | The Magazine of Fantasy and Science Fiction, October 1957 |
| December 1957 | 102 | Review | The Survivor and Others | Galaxy Science Fiction, December 1957 |
| December 1957 | 26 | Essay | Where does Science Fiction End and Reality Begin | Writer's Digest, December 1957 |
| November 1958 | 87 | Review | The Mask of Cthulhu | The Magazine of Fantasy and Science Fiction, November 1958 |
| 1959 | 8 | Poem | Revenants | Macabre, Summer 1959 |
| March 1959 | 148 | Review | Worlds of Tomorrow | Astounding Science Fiction, March 1959 |
| July 1959 | 158 | Review | Time to Come | Astounding Science Fiction, July 1959 |
| November 1959 | 12 | Short Fiction | Halloween for Mr. Faulkner | Fantastic Universe, November 1959 |
| November 1959 | 156 | Review | The Other Side of the Moon | Astounding Science Fiction, November 1959 |
| August 1960 | 100 | Review | The Shuttered Room and Other Pieces | The Magazine of Fantasy and Science Fiction, August 1960 |
| June 1962 | 112 | Review | Not Long for This World | Science Fantasy, June 1962 |
| July 1962 | Short Fiction | The Adventure of the Remarkable Worm | The Saint Mystery Magazine, July 1962 | |
| October 1962 | 112 | Review | The Survivor and Others | Science Fantasy, October 1962 |
| March 1964 | Short Fiction | The Adventure of the Intarsia Box | Alfred Hitchcock's Mystery Magazine, March 1964 | |
| March 1964 | 81 | Review | When Evil Wakes | The Magazine of Fantasy and Science Fiction, March 1964 |
| November 1964 | 121|121.4 | Review | From Other Worlds | New Worlds SF, November-December 1964 |
| November 1964 | 91 | Short Fiction | Lovecraft and "The Pacer" (excerpt) | Magazine of Horror, November 1964 |
| November 1964 | 81 | Short Fiction | The Pacer | Magazine of Horror, November 1964 |
| November 1964 | 123 | Short Fiction | The Shuttered Room (excerpt) | Magazine of Horror, November 1964 |
| January 1965 | 89 | Short Fiction | The Shuttered Room | Magazine of Horror, January 1965 |
| 1966 | 82 | Short Fiction | Ferguson's Capsules | Startling Mystery Stories, Summer 1966 |
| 1966 | 29 | Review | The Dark Brotherhood | Magazine of Horror, Summer 1966 |
| 1966 | 8 | Short Fiction | The Lair of the Star-Spawn | Magazine of Horror, Winter 1966/67 |
| January 1966 | 2 | Short Fiction | Walpurgisnacht | Bizarre Mystery Magazine, January 1966 |
| 1967 | 122 | Essay | Letter (Magazine of Horror, Spring 1967) | Magazine of Horror, Spring 1967 |
| 1967 | 20|20.2 | Review | Mr. Fairlie's Final Journey | The Arkham Collector, Summer 1967 |
| 1967 | 9|9.1 | Poem | Someone at the Pasture Gate | The Arkham Collector, Summer 1967 |
| 1967 | 8 | Short Fiction | The Adventure of the Tottenham Werewolf | Startling Mystery Stories, Spring 1967 |
| 1967 | Editor | The Arkham Collector - 1967 | The Arkham Collector, Summer 1967 | |
| 1967 | 60 | Short Fiction | Those Who Seek | Startling Mystery Stories, Winter 1967/1968 |
| 1968 | 54|54.2 | Review | A Praed Street Dossier | The Arkham Collector, Summer 1968 |
| 1968 | 55|55.4 | Review | Tales of the Cthulhu Mythos | The Arkham Collector, Summer 1968 |
| 1968 | Editor | The Arkham Collector - 1968 | The Arkham Collector, Winter 1968 | |
| 1968 | 113 | Review | The Arkham Collector, Summer 1968 | Startling Mystery Stories, Winter 1968/1969 |
| January 1968 | 110 | Review | Travellers by Night | Magazine of Horror, January 1968 |
| 1969 | Editor | The Arkham Collector - 1969 | The Arkham Collector, Winter 1969 | |
| 1969 | 126|126.4 | Review | Thirty Years of Arkham House | The Arkham Collector, Summer 1969 |
| March 1969 | 114 | Essay | Letter (Magazine of Horror, March 1969) | Magazine of Horror, March 1969 |
| 1970 | 7 | Review | Tales of the Cthulhu Mythos | Weird Terror Tales, Fall 1970 |
| 1970 | Editor | The Arkham Collector - 1970 | The Arkham Collector, Winter 1970 | |
| 1970 | 43 | Short Fiction | The Shadow on the Sky | Weird Terror Tales, Summer 1970 |
| October 1970 | 27 | Review | Tales of the Cthulhu Mythos | The Magazine of Fantasy and Science Fiction, October 1970 |
| 1971 | Editor | The Arkham Collector - 1971 | The Arkham Collector, Winter 1971 | |
| March 1971 | 74 | Review | Thirty Years of Arkham House, 1939-1969 | Bizarre Fantasy Tales, March 1971 |
| May 1971 | 20 | Short Fiction | Ghost Lake | Witchcraft & Sorcery #6, May 1971 |
| May 1971 | 47 | Review | Tales of the Cthulhu Mythos | Witchcraft & Sorcery #6, May 1971 |
| March 1975 | 20 | Review | The Memoirs of Solar Pons No. 3 | The Science Fiction Review, March 1975 |
| June 1975 | 60 | Review | Regarding Sherlock Holmes | Whispers, June 1975 |
| June 1975 | 3 | Review | The Watchers out of Time and Others | Whispers, June 1975 |
| August 1975 | 10 | Review | Harrigan's File | The Science Fiction Review (Monthly), August 1975 |
| December 1975 | 118 | Review | The Watchers Out of Time and Others | Fantastic, December 1975 |
| February 1976 | 26 | Review | Harrigan's File | Luna Monthly, #62, February 1976 |
| April 1976 | 65 | Review | The Watchers Out of Time | The Magazine of Fantasy and Science Fiction, April 1976 |
| July 1976 | 34 | Review | The Mask of Cthulhu | Vector 75 |
| August 1976 | 114 | Review | Harrigan's File | Fantastic, August 1976 |
| August 1976 | 26 | Review | The Lurker at the Threshold | Delap's F & SF Review, August 1976 |
| September 1976 | 30 | Review | The Mask of Cthulhu | Delap's F & SF Review, September 1976 |
| September 1976 | 31 | Review | The Trail of Cthulhu | Delap's F & SF Review, September 1976 |
| December 1988 | 171 | Review | The Lurker at the Threshold | Isaac Asimov's Science Fiction Magazine, December 1988 |
| April 1990 | 13 | Review | The Lurker at the Threshold | Paperback Inferno, #83 |
| 1999 | 13|13.2 | Review | In Lovecraft's Shadow: The Cthulhu Mythos Stories of August Derleth | Weird Tales, Summer 1999 |
| 1999 | 9 | Review | The Dark of the Moon | Weird Tales, Summer 1999 |
| 2000 | 11|11.2 | Review | New Horizons: Yesterday's Portraits of Tomorrow | Weird Tales, Summer 2000 |
| February 2000 | 140 | Review | In Lovecraft's Shadow | Asimov's Science Fiction, February 2000 |
| December 2008 | |5 | Review | The Watchers Out of Time and Others | Reflection's Edge, December 2008 |
138 English-language books
- Addenda to 'H. P. L.: A Memoir' 2
- Chronicles of the City-States 5
- Cthulhu Mythos (Lovecraft contemporary) 1
- Cthulhu Mythos collections 1
- Cthulhu Mythos novels 1
- Cthulhu Mythos short fiction 2
- Cthulhu Mythos Tales 1
- H. P. L.: A Memoir 1
- Judge Peck 10
- Mill Creek Irregulars 5
- Sac Prairie Saga 39
- Solar Pons 92
- Tales of the Cthulhu Mythos 3
- Tex Harrigan 18
- The Arkham Collector 5
- The Arkham Sampler (1948-49) 2
- The Boiling Point 2
- The Lovecraft Letters 1
- The Trail of Cthulhu 6
- WFOP Anthology 1
- Wisconsin Saga 2
Father of April Derleth and Walden Derleth.