[My book is] a collection of letters and essays about what it takes to be a young woman today. Mostly the taboo things that girls don't want to talk about, but once we do we realize we're not alone.

My last name may have opened doors, but I have to keep them open.

I’m a huge fan of the books myself, so to know that I got to play Clary – who’s a literary heroine to me – was a huge honour.

The weirdest moments for me are in Los Angeles when I go to a mall that I've shopped at since I was 12, and now there's like, massive pictures of our faces everywhere, at my local coffee shops now there's these billboards of people wearing the T-shirts and stuff. It's very strange, but it's really exciting.

The fans reacted very positively to me being cast [The Mortal Instruments] which, as a Twilight or Harry Potter franchise, when you read a book and you have someone in your mind or you have a vision and then they're cast in real life, it can go either way. So I was very, very honored and happy that they were excited.

Starting at 16 years old I was in boardrooms of older executives pitching talk shows. I wanted to be the youngest talk show host for a really long time.

I don't like reading things that people say on the Internet because I know so much of it is not true. I don't want to waste my time worrying about what other people are thinking. I just want to focus on being able to do cool projects.