Let's all take a moment and appreciate the goregeousness of that cover. Gah! It's so beautiful. Anyway, this was a fabulous addition to the series because 1) it gives readers a great insight into Celaena's life before Throne of Glass, 2) it features Sam, and 3) it's the hardback copy of all the novellas (that's like the holy trinity right there). I loved being able to watch Celaena's progression throughout the novellas, and it was better to read them all back to back. Things flowed more and made more sense, at least to me. I loved seeing the truth behind her relationship with Sam, as well as Arbowynn, and exactly what happened to get Celaena sent to Endovier. 
 Each novella is relatively short, so I don't want to go into too much detail. However, this is a must read for any fan of the Throne of Glass series. But, this would also be a great start for new readers that have yet to discover the amazingness of Sarah J. Maas. I highly recommmed checking this book out. It won't disappoint! Happy reading :)