Fun little picture book that contains five very short, very simple stories about friendship. Each story has a small moral, and moral stories about friendship could potentially be very tedious but this isn't - instead it's charming. Part of that's due, I think, to the illustrations, which are just so friendly and funny. (George and Martha are hippos, and I defy anyone to produce a cartoon of a hippo in a bathtub that isn't funny.) But mostly it's because, even though the two of them are always so kind and supportive of each other, they're not saccharine with it. "There is such a thing as privacy!" Martha cries, even among friends, after she catches George peeping at her while she's in the bath - and promptly batters him over the head with said bath. (Hippos are very strong.) George gets her back with the mirror trick, though, and I think the picture of him leaning into frame and sniggering is the best of the bunch.