There is no doubt the author has gone to certain source and fountain heads for her information, and, in a few sentences, covering each interview, has given concise, helpful information. But when she essays -- on her own -- to tell the young hopeful how to start out, it is apparent that her own knowledge is very superficial. She flutters from ""twinkling"" designer to ""cello-voiced"" stylist -- and ignores the backbone, hard-boiled Jewish dress manufacturers of Seventh Avenue. Her own contribution is chiefly department store experience, and scarcely touches the ruts and pitfalls which accompany it, assuming that one always graduates to be buyer. Unfortunately, it lacks both taste and style.