For cat lovers the recognition factor here approaches 100%. Mog, an impeccably white-stockinged tabby, is not exactly forgetful, just endearingly troublesome in the way of all pets. With the gratuitous exception of her inadvertently catching a burglar, Mog is characterized through the kind of minute observations that will delight fans of feline eccentricity and (most likely) mystify those not so inclined. Mog ""sometimes thought of something in the middle of washing her leg. Then she forgot to wash the rest of it""; another time, ""Mog forgot that Debby was not a kitten"" and licked the sleeping Debby's hair, inspiring a nightmare about a Rousseau-like tiger. Like the story, the cleanly precise illustrations emphasize carefully abstracted detail more than sustained emotional impact.