Specials by Scott Westerfeld.  
This is the final book in the Uglies Trilogy.  If you have missed this trilogy or don’t have it in your library for the teens in your community, RUN out and get it.  It is a great series that offers a unique society where people of a certain age are surgically turned into Pretties.  Tally Youngblood finds herself caught in yet another web of lies and control where she has to think her way past her latest surgery.  I really don’t want to give much away, especially if you haven’t had the pleasure of reading the first two books in the series.  Let me just say that the final book in the trilogy is filled with as much adventure, amazement, detailed world building, and pure reading fun as the first two.  I enjoy Westerfeld’s sly humor and the not-so-subtle parallels with today’s society that ring very true.  
This is a great trilogy.  The only bad thing about it is that it is now finished.  But having read Westerfeld and loved his other books too, we will just have to wait to see what amazing teen novel he puts out next.  These are a must-purchase!  Recommend them to kids who enjoy science fiction.  They will be enjoyed by both boys and girls alike.