Throne of Glass is about an 18-year old assassin named Celaena Sardothien. She was put into the slave camp, Endovier, to serve her sentence. As Celaena stays in Endovier, the King of Adarlan holds a competition to find his personal assassin. Celaena as well as other assassins from the area have come to compete. If she wins, she wins her freedom from Endovier and the freedom to live in the Kingdom.
The author, Sarah J. Maas, does an amazing job giving each of her characters throughout the book a very deep back story that impacts the plotline of Throne of Glass as well as the later books in the series. She gives the book lots of details and twists while adding bits of humor. The protagonist Celaena is very humorous and relatable while also being a strong, confident female lead. All in all, I would highly recommend this book.