Sarah Rees Brennan (born 21 September 1983) 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 both the UK and USA. Life and career. Rees Brennan was born in Ireland. She obtained a Creative Writing MA from Kingston University in London and worked as a librarian in Surrey, England before moving to Dublin where she currently lives. Rees Brennan has been writing since the age of five. She has a blog on LiveJournal which has over 4000 subscribers.
https://en.wikipedia.org/wiki/Sarah_Rees_Brennan