- I Believe in Sherlock Holmes
- I Bring Sorrow
- I canti di Partenope
- I Canti di Partenope. Il pendolo e l'anima
- I casi del commissario Croce
- I colori del sesso
- I Misteriosi
- I MITI - Luci ed ombre
- I Piombi Neri
- I racconti del commissario Taufer
- I racconti del mistero
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- I Sei Napoleoni
- I semi della discordia
- I Tre Strumenti Di Morte
- I, Crime Writer
- I, Detective
- I, Spy - 6 Espionage & Detective Books in One Edition
- Ich hab mal einen Killer gekannt: 4 Action Krimis
- Ideoplastic
- If Wishes Could Kill
- Iffy
- Iko Terouka - L'assassinat du banquier
- Iko Terouka - La jonque disparue
- Iko Terouka - Le billet de loterie
- Iko Terouka - Le diamant de la Gold Mining Corp.
- Iko Terouka - Le ranch de l'Étoile Rouge
- Iko Terouka - Les rubis du temple de Siva
- Ill-Gotten Games: a Scott Drayco Short Story
- Im Netz
- Im Sommer des Mordes
- Images
- Imbroglio
- Improbable Cause
- In a Cellar
- In a Cellar and other Stories
- In der heißen Sonnenglut
- In Hermanns Schatten
- In het rood
- In het spoor van de Hopduvel
- In Memoria
- In Search of the Unknown
- In the Arms of the Sea
- In the Blood of Justice
- In the Company of Sherlock Holmes
- In the Interest of Public Safety
- In the Key of 13
- In the Light of Day
- In the Real World
- In The Season of The Damned
- In the Shadow of Agatha Christie
- In the Shadow of El Paso
- In the Still of the Night
- In Your Dreams
- Inbox Zero
- Incident on Ten-Right Road
- Incubi della Buona Notte
- Indian Time
- Infernal Triangle
- Inheritance
- Injury Time
- Innocent Guilt
- Insatiable
- Insomnia
- Inspecteur PINSON
- Inspector Alan Grant Mysteries - Complete Series
- Inspector Alleyn 3-Book Collection 1
- Inspector Alleyn 3-Book Collection 10
- Inspector Alleyn 3-Book Collection 11
- Inspector Alleyn 3-Book Collection 2
- Inspector Alleyn 3-Book Collection 3
- Inspector Alleyn 3-Book Collection 4
- Inspector Alleyn 3-Book Collection 5
- Inspector Alleyn 3-Book Collection 6
- Inspector Alleyn 3-Book Collection 7
- Inspector Alleyn 3-Book Collection 8
- Inspector Alleyn 3-Book Collection 9
- Inspector Baseheart Returns
- Inspector Baseheart's Secret Files
- INSPECTOR FURNIVAL TRILOGY - Complete Murder Mystery Series
- Inspector Furnival's Cases
- Inspector Furnival's Most Mysterious Cases
- Inspector Furnival's Cases
- Inspector Furnival's Most Mysterious Cases
- INSPECTOR STODDART'S COMPLETE MURDER MYSTERIES – 4 Intriguing Golden Age Thrillers in One Volume
- Inspector Stoddart's Most Famous Cases
- Inspector Stoddart's Murder Mysteries (4 Intriguing Golden Age Thrillers)
- Inspector Stone Mysteries Volume 1 (Books 1-3)
- Inspector Zhang and the Dead Thai Gangster (a short story)
- Inspector Zhang and the Disappearing Drugs (a short story)
- Inspector Zhang and the Falling Woman (a short story)
- Inspector Zhang and the Island of the Dead (A Short Story)
- Inspector Zhang and the Perfect Alibi (a short story)
- Inspector Zhang Goes to Harrogate (A Short Story)
- Inspector Zheng is Wanted
- Instrument of Justice
- Intellectuals termed negative
- Intent: Return of Evil
- International Short Stories (English Stories)
- International Short Stories (French Stories)
- Interno 74
- Intime leggende
- Into His Art
- Into the Dark
- Intouchables -L'agent de dératisation - Le dernier voyage à New York
- Intrigue au Charleston
- Intrigues criminelles du XIXe siècle
- Investigating Women
- Investigations Beyond Belief: The Intitial Adventures of Deb Powers: Otherworldly PI
- Invisible Grave
- Io c'ero carabiniere del nucleo antiterrorismo
- Io, il mostro
- Ire and Avarice Part One
- ISABEL OSTRANDER Premium Collection – Mystery & Western Classics
- Isabel Ostrander: Mystery & Western Classic
- Island Secrets
- Island Vibes and Other Stories
- Ist so kalt der Winter
- It All Comes Back
- It Never Rains In Hammertown
- It Takes Two: A Short Story Collection
- It Was A Dark And Stormy Classroom