Sarah Rees Brennan is an Irish writer best known for young adult fantasy fiction. Her first novel, The Demon's Lexicon, was released June 2009 by Simon & Schuster. Rees Brennan's books are bestsellers in the UK.

Tales from the Shadowhunter Academy or simply called Shadowhunter Academy is a series of connected novellas featuring the character of Simon Lewis from Cassandra Clare's best-selling The Mortal Instruments series. It consists of ten novellas written by Cassandra Clare in collaboration with other authors that were published online on a monthly basis. Tales from the Shadowhunter Academy was released in print on November 15, 2016.