The genesis of this captivating book was unusual: the compiler (who is also an illustrators' agent), responding to Rogers's fascination with monsters (`` `They' kept popping up in her sketches; and we would talk about `them' as though they already existed and were only in need of a place to be''), chose these 16 poems not only for their appeal but also to summon Rogers's particular vision. The result has a great deal of variety and a special charm, nicely summed up in a poem by de Regniers—``Scare me easy/Scare me slow/Scare me gentle/Don't let go/my hand.'' Though there are plenty of ghoulies, ghosties, and witches here, there's nothing wicked or gruesome; an ingenuous humor is at work, and recognition that these superficially ugly creatures (like Max's Wild Things) represent a part of ourselves that's not too bad. Whether it's Sawyer's picnicking bugs capsized by a ``giant'' toddler or Lee's ``Thunder'' made by a giant's children slamming doors, Bennett's power-shovel dinosaur or Prelutsky's armored ankylosaurus, Ciardi's Halloween creatures or cummings's ``Hist Whist,'' imagination is the key. Mellow, witty, and delightfully inventive, Rogers's illustrations are her best yet. A year-round winner. (Poetry/Picture book. 4+)