How many books will there be in the iron fey series by Julie kagawa?

There are six books in the Iron Fey series by Julie Kagawa:

1. Iron Fey: The Iron King

2. Iron Fey: The Iron Daughter

3. Iron Fey: The Iron Knight

4. Iron Fey: The Iron Crown

5. Iron Fey: The Iron Traitor

6. Iron Fey: The Iron Warrior

The series also includes a novella, Iron Fey: The Iron Queen, which takes place between The Iron Knight and The Iron Crown.