Costume Designer Carrie Robbins details the process of costume design from the phone call to the sketch to the construction of the costume; relates the story of finding the perfect fabric for the "Sisters" dresses in "White Christmas" and not being able to purchase enough for all three productions - and then how the fabric was created on a computer; explains the costume designers "bible" (used to hold all infor mation about the designs for a production) and the effort and detail that goes into it; and discusses the differences between costumes and clothes; what happens at fittings.