4 stars each
Prequels to Cinder and Scarlet, respectively
These short stories give us a glimpse of Cinder's and Wolf's life before the books.
Even though Glitches happens before Cinder, I actually recommend reading both in between Cinder and Scarlet so that you already have a feel for the world.
They probably deserve 5 stars, but I struggle with short stories in general. Generally there's just not enough to them for me.
I did really enjoy them both.
Overall, they're both definitely worth the read.