I love the idea of being able to reach back into the past and offer advice to your teenage self - not the lotto numbers but advice about life issues.  This book was the brainchild of Grace Halphen, a Melbourne teenager who realised that her teen issues were common to most of her peers.  The proceeds from the sale of this book go to the Reach Foundation which helps teens reach their full potential.  The contributors include, Dannii Minogue, Stephanie Rice, Peter Alexander and Guy Sebastian.  It is obvious from reading the book that insecurity is a common theme in your teenage years.  The common message is to believe in yourself.  Find out more here.