Spookley the Square Pumpkin — Joe Troiano

It's two fun books in one, hosted by the irresistible square pumpkin, Spookley! All kids have to do to go from Colors to Numbers and back again is flip over the board book. What they'll find inside are cheerful, entertaining lessons in rhyme, filled with a patch of smiling pumpkins in a variety of shapes.
 Numbers takes young counters from one single Spookley waving hello to a group of ten pumpkin pals. The charming Colors showcases a rainbow of pumpkins, including a little one that's red and fat, a silly pumpkin that's blue and flat, and a happy fellow that's bright yellow and tall.