The Art Of Being Normal was written by Lisa Williamson.
The book is about two outsiders, David and Leo and both of them have a wish:
Leo wants to be invisible.
David wants to be a girl.
They both go to the same school and eventually become friends but it doesn´t take too long until they´re secrets come out to the world.
Honestly, I think I cried during 70 % of the book because there is such a beautiful representation of what it feels like to be transgender in this book (and yes, I do know what that feels like I´m not making anything up) and the story is just so motivating (that sounds weird if you haven´t read the book). I think this book deserves way more attention then it has right now because, well, it´s good.