Isadora's full page, glowing, sun-dappled art--in the style she used for McKissack's Flossie and the Fox (1986)--is the center of attraction here. By using variations on low and close-up vantage points, she cleverly suggests the frog's point of view, evoking more than the usual sympathy for that persistent creature; and the lovely, auburn-haired princess would have appealed to Renoir. Small figures in silhouette on the text pages add to the dreamy quality. The gentle rendition of Grimm's familiar story is clear and straightforward, somewhat abbreviated from the original, and concludes with the princess' marriage to her frog prince; ""Iron Heinrich"" is omitted. Good picture-book-hour fare.