There are the main books:
The Grisha Trilogy
Shadow and Bone
Siege and Storm
Ruin and Rising
Six of Crows Duology
Six of Crows
Crooked Kingdom
King of Scars
King of Scars
Rule of Wolves
complimentary tales:
The Language of Thorns: Midnight Tales and Dangerous Magic
The Lives of Saints
Demon in the Wood
The Six of Crows pair are my favorite. I've read them at least twice. More of a heist story and somehow even though the story is told through muliple POVs, each character has their own voice and personality in their chapters. I've read King of Scars twice as well but was disappointed in a lot of Rule of Wolves. Surprisingly to me, Zoya became one of my favorite characters of the whole series.
i thought i'd made a thread about the series in Books and Music, but if i did, i cannot find it.