"The Mortal Instruments series is a story world that I love to live in. I hate to see the story end, but if it has to end, then City of Glass is the most perfect way for that to happen. Beautiful!"
– Stephenie Meyer, internationally bestselling author of Twilight
"This book has terror, unexpected twists, sorrow—it is tragedy edged by lightning, driven by power and love. Clare keeps getting better!"
– Tamora Pierce, bestselling author of The Will of the Empress
"In search of a potion for her dying mother, Clary sneaks into the City of Glass and is immediately caught up in a life-and-death battle. As the children of the Moon (werewolves), Night (vampires), and Faerie gather for a war that will rend the heavens, Clary calls upon her untrained powers to control an angel who will save or destroy them all. Readers should be familiar with the first two installments in the Mortal Instruments series, but there is nevertheless plenty of romance, loss, honor and betrayal to make the journey worthwhile. An experienced storyteller, Clare moves the plot quickly to a satisfying end."
"The time has come for the Clave to oppose Valentine, but he has no intentions of submitting, putting both the Shadowhunters and the Downworlders on edge. Clare's concluding volume of The Mortal Instruments trilogy is complex and striking. Not to be missed."
– Spring 2009 Children's Indie Next List
"Cassandra Clare works magic with this novel. The excitement begins on the first page and doesn't stop until the final sentence. She brings everything full circle for a completely satisfying ending—even though fans would be more than happy to read about these beloved characters forever."
– Karin's Book Nook
"City of Glass is beautifully written and interwoven with amazingly unforgettable characters and moments; everything is brought full circle and I have to say that I want to get back on the ride and do it all over again and again."
– The Ravenous Reader