David Marcum

Collected Papers of Sherlock Holmes
   1. The Collected Papers of Sherlock Holmes - Volume 1 (2021)
   2. The Collected Papers of Sherlock Holmes - Volume 2 (2021)
   3. The Collected Papers of Sherlock Holmes - Volume 3 (2021)
   4. The Collected Papers of Sherlock Holmes - Volume 4 (2021)
   5. The Collected Papers of Sherlock Holmes - Volume 5 (2021)

   Beyond Watson (2016) (with Derrick Belanger, Don Everett Smith Jr, Luke Benjamen Kuhns, Kieran Lyne, Jack McDevitt, Richard Paolinelli, David Ruffle, Geri Schear, Elizabeth Varadan, Daniel D Victor and Marcia Wilson)
   The Papers of Solar Pons (2017)

MX Book of New Sherlock Holmes Stories
   1. The MX Book of New Sherlock Holmes Stories Part I (2015)
   2. The MX Book of New Sherlock Holmes Stories Part II (2015)
   3. The MX Book of New Sherlock Holmes Stories Part III (2015)
   4. The MX Book of New Sherlock Holmes Stories Part IV (2016)
   5. The MX Book of New Sherlock Holmes Stories Part V (2016)
   6. The MX Book of New Sherlock Holmes Stories Part VI (2017)
   7. The MX Book of New Sherlock Holmes Stories Part VII (2017)
   8. The MX Book of New Sherlock Holmes Stories Part VIII (2017)
   9. The MX Book of New Sherlock Holmes Stories Part IX (2018)
   10. The MX Book of New Sherlock Holmes Stories Part X (2018)
   11. The MX Book of New Sherlock Holmes Stories Part XI (2018)
   12. The MX Book of New Sherlock Holmes Stories Part XII (2018)
   13. The MX Book of New Sherlock Holmes Stories Part XIII (2019)
   14. The MX Book of New Sherlock Holmes Stories Part XIV (2019)
   15. The MX Book of New Sherlock Holmes Stories Part XV (2019)
   16. The MX Book of New Sherlock Holmes Stories Part XVI (2019)
   17. The MX Book of New Sherlock Holmes Stories Part XVII (2019)
   18. The MX Book of New Sherlock Holmes Stories Part XVIII (2019)
   19. The MX Book of New Sherlock Holmes Stories Part XIX (2020)
   20. The MX Book of New Sherlock Holmes Stories Part XX (2020)
   21. The MX Book of New Sherlock Holmes Stories Part XXI (2020)
   22. The MX Book of New Sherlock Holmes Stories Some More Untold Cases Part XXII (2020)
   23. The MX Book of New Sherlock Holmes Stories Some More Untold Cases Part XXIII (2020)
   24. The MX Book of New Sherlock Holmes Stories Some More Untold Cases Part XXIV (2020)
   25. The MX Book of New Sherlock Holmes Stories Part XXV (2021)
   26. The MX Book of New Sherlock Holmes Stories Part XXVI (2021)
   27. The MX Book of New Sherlock Holmes Stories Part XXVII (2021)
   28. The MX Book of New Sherlock Holmes Stories Part XXVIII (2021)
   29. The MX Book of New Sherlock Holmes Stories Part XXIX (2021)
   30. The MX Book of New Sherlock Holmes Stories Part XXX (2021)
   31. The MX Book of New Sherlock Holmes Stories Part XXXI (2022)
   32. The MX Book of New Sherlock Holmes Stories Part XXXII (2022)
   33. The MX Book of New Sherlock Holmes Stories Part XXXIII (2022)
   34. The MX Book of New Sherlock Holmes Stories Part XXXIV (2022)
   35. The MX Book of New Sherlock Holmes Stories Part XXXV (2022)
   36. The MX Book of New Sherlock Holmes Stories Part XXXVI (2022)

Holmes Away From Home
   1. Holmes Away From Home 1 (2016)
   2. Holmes Away from Home 2 (2016)

Sherlock Holmes: Adventures Beyond the Canon
   1. Sherlock Holmes: Adventures Beyond the Canon I (2018)
   2. Sherlock Holmes: Adventures Beyond the Canon II (2018)
   3. Sherlock Holmes: Adventures Beyond the Canon Volume III (2018)

Adventures of Solar Pons
   1. In Re: Sherlock Holmes (2018)
   6. Terror Over London and Mr. Fairlie's Final Journey (2018)
   8. The Apocrypha of Solar Pons (2018)
   10. The New Adventures of Solar Pons (2019)

Cases of Sherlock Holmes & Solar Pons
   1. The Meeting of the Minds 1 (2021)
   2. The Meeting of the Minds 2 (2021)

Sherlock Holmes: After the East Wind Blows
   1. After the East Wind Blows: 1914-1918 (2021)
   2. After the East Wind Blows: 1919-1920 (2022)

   The Forty Thieves and Other Stories (2016)
   The Haunting of Sherlock Holmes and Other Stories (2016)
   The Lady on the Bridge and other Stories (2016)
   The Verse of Death and other stories (2016)
   Sherlock Holmes: Before Baker Street (2017)
   Imagination Theatre's Sherlock Holmes (2017)
   Sherlock Holmes is Everywhere! (2019) (with Derrick Belanger)
   Sherlock Holmes and Dr. Watson: The Early Adventures Volume I (2019)
   Sherlock Holmes and Dr. Watson: The Early Adventures Volume II (2019)
   Sherlock Holmes and Dr. Watson: The Early Adventures Volume III (2019)
   The Nefarious Villains of Sherlock Holmes Volume II (2022)
   The Nefarious Villains of Sherlock Holmes Volume I (2022)
   An Investees' Anthology (2023)