The Dark Tower Series Novels

The Dark Tower (The Dark Tower 7) by Stephen King
Song of Susannah (The Dark Tower 6) by Stephen King
Wolves of the Calla (The Dark Tower 5) by Stephen King
The Wind Through the Keyhole (The Dark Tower 4.5) by Stephen King
Wizard and Glass (The Dark Tower 4) by Stephen King
The Waste Lands (The Dark Tower 3) by Stephen King
The Drawing of the Three (The Dark Tower 2) by Stephen King
The Gunslinger (The Dark Tower 1) by Stephen King
The Little Sisters of Eluria (The Dark Tower 0.5) by Stephen King