I thought that City of Glass was better than City of Bones and City of Ashes. I know there is also City of Fallen Angels and City of Lost Souls, but I haven't gotten to that yet.
City of Glass had plenty of romance, tons of action and enough drama to get me feeling emotional. In the end, I was very content with the conclusion. This book is amazing; this series is amazing ! I reccomend it to anyone who like fantasy, romance and action.
I also love how Isabelle developed a character, and how the stunning Sebastian was introduced. Changes like these made the series seem more realistic and better.
All in all; one of my favourite books for sure !