A gift book displays a pleasing to jolly collection of stories and verse, prettily illustrated in color by Charlotte Steiner, for very young celebrants. To start off there's a Happy Birthday Song and once under way, you'll have no trouble getting listeners for rhymen about the new baby, wrapping presents or being four years old, and stories about surprises, parties and things special. And the authors of the forty or so selections range from Katherine Mansfield to Miriam Schlein.