Saturated colors, thick black outlines, and cartoonish faces bring a vibrant energy to Blake's uncouth tale. A young white rabbit with an insouciant twinkle responds to every conversation with the words 'poo bum, ' right up until the moment he gets eaten by a green wolf. The snack doesn't agree with the wolf and the doctor--little Poo Bum's father--retrieves the wee pottymouth, who responds to the ordeal by speaking with ornate eloquence, until switching to the word 'fart.' Full-bleed spreads in gloriously bright colors are paired with a large, bold font for a visual experience that lends itself to a read-aloud. As a story, the text relies on the peculiar joy of hearing gross words, which won't appeal to everyone. VERDICT A slight but lively book, which will delight readers who want to repeat 'fart' and 'poo' for the rest of the day.--School Library Journal-- "Journal"