Advance Your Swagger by Fonzworth Bentley is a good one. It's on the basic side, but the manners information is very useful for a teen who's just learning. I recommended it to an adult friend who was going to her first ever formal dinner and felt unsure of herself. She told me later that it saved her from several very embarrassing gaffes.
I read Miss Manners books as a teen. I think some might be a little too intimidating, but Miss Manners' Basic Training: The Right Thing to Say would be a place to start.