In the novel, Cassandra Clare includes references to the works of Holly Black, who is a friend of Clare's.
- In the beginning of the book, Clary is drawing and listening to a band called Stepping Razor. Stepping Razor is the name of Ellen Fierch's band in Tithe: A Modern Faerie Tale.
- In the scene in Chapter 10 where Clary and Jace are riding in the carriage, Clary looks out the window and sees a few homeless teenagers. One of them is a girl with a shaved head, the other a boy with dreadlocks and facial piercings who appears to be blind in one eye. These teenagers are actually the characters Valerie and Luis from Black's book Valiant: A Modern Tale of Faerie.
She also includes references to the works of Philip Reeve, whose works Mortal Engines and Infernal Devices she drew inspiration from. Her inclusion of the antagonist Valentine, who is later revealed to be the father of Clary, is a nod to Philip Reeve's main antagonist in Mortal Engines of the same name, who is also discovered to be the father of one of the main characters.