I won this book on LibraryThing and would highly recommend it to all teens. Give Up the Ghost brings up important issues in all teens lives: alcoholism, suicide, loss of a loved one and angst. This is not to say that the book is a downer and most of all it shows how friendship can overcome the feelings of isolation a lot of people have. Even the title sums up the whole book, in order to find yourself and grow, you must give up all the old ghosts that are haunting you. Cass uses ghosts the same way "normal" teens use makeup as a way to hide from real life. When she meets Tim, she realizes that in order to save him and herself, she must literally "give up the ghosts".