The Mortal Instruments series is really great and addictive! It's a mixed love story and after the first book you want to read them all!!
Far better than Twilight as there is no annoying Jacob, I recommend this series to any Twilight fan!
Cassandra Clare has given each character an individual personality and it's easy to relate to the problems Clary and Jace face. Simon also has a huge part and ends up being a hero.
This is absolutely fantastic! :]