Short by Holly Goldberg Sloan

Julia's mom decides that her children need something to do over the summer, so she signs them up for the community play.  Julia's brother, Randy, is quite talented, but Julia does not think she has any special talents at all.  What she does not realize until she gets there is that the play is a musical--The Wizard of Oz, and she is cast as the lead munchkin.  Julia is older than all of the other children who have been cast as munchkins, but she befriends a woman who teaches her that it doesn't matter how you look on the outside.  The inside is what matters.

This is a lesson for everyone.  I recommend this book as a quick read.