I love, love, love this book:The Demon's Lexicon
by Sarah Rees Brennan
Also, Sarah writes short stories
set in the universe of The Demon's Lexicon (but it doesn't spoil you the book) to thank readers for buying the U.S. hardcover edition.
And anyone can read them for free :) And that is beyond awesome and an extra motive to go buy and read the book, people :)