The illustrations are bright and vibrant and beautiful.  The words are full of rhyme and rhythm and repetition.  It’s a counting book, counting both up and down as the polliwogs plopping in the soggy bog turn into grimpy-grumpy frogs siting on the mossy log.  It’s got a variety of adjectives.  All-around, it’s a fun book for very young readers, which somewhat reminds me of Chicka-Chicka Boom Boom, for its use of sounds and playing with words.