**Hurrah for a long-needed preparatory book to deactivate the explosive fears many children have about the first day of school. Kindergarten teachers and first-grade teachers will cheer this healthy and positive book which should build anticipation for that major break with home. Appropriately autumnal colors in illustrations set a go-to-school mood with the tale of little Patty, who goes to bed the night before school is to start with her new clothes all ready and waiting. Because Patty has told all the animals in the neighborhood, there is a parade of wild life which follows her to the school house, kibitzing. The pigs watched Patty finger painting. ""Not that way,"" they squealed, ""You must roll in it, for mud's sake."" And the fawn was shocked when Patty watered the flower garden instead of eating it. And all the animals decide to do ""just as they have always done"". Now if some publisher will figure out a way to brace up parents too, the tearful debacle which marks the first day of school may go slightly more smoothly. Artist Kathleen Elgin does justice to a story by the author who gave us All Ready for Winter and All Ready for Summer.