Assassins books
Here are 48 books with a lot of assassins, starting with The Assassin's Blade, Grave Mercy and Black Widow.
The Assassin's BladeSarah J. Maas
Grave MercyRobin LaFevers
Black WidowJennifer Estep
The HunterTom Wood
Spider’s RevengeJennifer Estep
AlamutVladimir Bartol
Assassin's Creed: BrotherhoodOliver Bowden
The GameTom Wood
Killers of a Certain AgeDeanna Raybourn
The EnemyTom Wood
Throne of GlassSarah J. Maas
The Way of ShadowsBrent Weeks
Boy NobodyAllen Zadoff
Shadow's EdgeBrent Weeks
Assassin's ApprenticeRobin Hobb
Crown of MidnightSarah J. Maas
Kills Well with OthersDeanna Raybourn
Beyond the ShadowsBrent Weeks
Black Widow, Volume 1Nathan Edmondson
NevernightJay Kristoff
The HitDavid Baldacci
Dark TriumphRobin LaFevers
The Assassin and the DesertSarah J. Maas
Otherwise AloneShay Savage
Back BlastMark Greaney
Shadow's SonJon Sprunk
Thread of DeathJennifer Estep
The Butcher's BoyThomas Perry
Assassin's Creed: ForsakenOliver Bowden
Assassin's HeartSarah Ahiers
Seeds of IniquityJ.A. Redmerski
The Book of JheregSteven Brust
Young Love MurderApril Brookshire
Lady KillerJoelle Jones
Graveyard of MemoriesBarry Eisler
Hit ListLawrence Block
Bitter BiteJennifer Estep
The Hunter's PrayerKevin Wignall
Web of LiesJennifer Estep
The Assassin and the EmpireSarah J. Maas
The Assassin and the UnderworldSarah J. Maas
Tangled ThreadsJennifer Estep
Orphan XGregg Hurwitz
Certain PreyJohn Sandford
Blood on SnowJo Nesbo
JheregSteven Brust
Perfect ShadowBrent Weeks
By a ThreadJennifer Estep