Possession books
Here are 48 books with a lot of possession, starting with The Exorcist, Come Closer and My Best Friend's Exorcism.
The ExorcistWilliam Peter Blatty
Come CloserSara Gran
My Best Friend's ExorcismGrady Hendrix
Outcast, Vol. 2: A Vast And Unending RuinRobert Kirkman
PandemoniumDaryl Gregory
The Neutronium AlchemistPeter F. Hamilton
The Naked GodPeter F. Hamilton
The Devil InsideJenna Black
SwoonNina Malkin
Outcast, Vol. 1: A Darkness Surrounds HimRobert Kirkman
Outcast, Vol. 4: Under Devil's WingRobert Kirkman
The Case Against SatanRay Russell
SeedAnia Ahlborn
The Devil's DueJenna Black
PossessGretchen McNeil
The Devil's PlaygroundJenna Black
What the Night KnowsDean Koontz
The Naming of the BeastsMike Carey
PossessionsNancy Holder
The Night's Dawn TrilogyPeter F. Hamilton
The Revenge of the Wizard's GhostJohn Bellairs
The Devil You KnowJenna Black
The Stars Never RiseRachel Vincent
The DemonologistGerald Brittle
The Reality Dysfunction Part 2: Expansion (Night's Dawn 1)Peter F. Hamilton
Speak of the DevilJenna Black
Ammie, Come HomeBarbara Michaels
The Last Days of Jack SparksJason Arnopp
The Devil's LabyrinthJohn Saul
The MercilessDanielle Vega
LegionWilliam Peter Blatty
The Right Hand of EvilJohn Saul
After ObsessionCarrie Jones, Steven E. Wedel
Thicker Than WaterMike Carey
Posesión de Alba díaz / the Possession of Alba DíazIsabel Cañas
The Possession of Alba DíazIsabel Cañas
The PossessionsSara Flannery Murphy
The Third EvilR.L. Stine
The Merciless IIDanielle Vega
Sweet HeartPeter James
The Demon Catchers of MilanKat Beyer
New York NightStephen Leather
LaylaColleen Hoover
A Head Full of GhostsPaul Tremblay
Unnatural IssueMercedes Lackey
RevelationCarol Berg
The Witch of Painted SorrowsM.J. Rose
A Good and Happy ChildJustin Evans