Thirty wise, witty, neatly constructed poems, from a spirited definition (``Whether there's ten or there's two in your family,/All of your family plus you is a family!'') to an inclusive celebration (``Our Family Comes from Round the World''). Between is a sampling of configurations (``I am a half- brother/I am a whole-brother/I am a step-brother/There's just one of me!''); comical glimpses of the family scene; and some quieter, affectionate moments. In her lively illustrations, Hafner captures both the hilarious—like an uproarious four-ring family at dinner—and such blissful moments as getting Mom's full attention while sick in bed. Full of insight and lots of fun. (Poetry/Picture book. 4-9)