Question: Whats a good book for teenage girls?? 

Answer: Are You There, God? It's Me, Margaret. by Judy Blume.  That was the best book when I was about 12-13.  I really loved the Christopher Pike and Fear Street books around 13-14.  Go to the Young Adult section of Barnes and Noble or Borders.  Catcher in the Rye was great, as was To Kill A Mockingbird and The Lord of the Flies.
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