THE DAY THE CRAYONS QUIT puts a fun spin on how each color may feel about its most common uses Blue, for example, is used for water and clear skies, and quite frankly is exhausted. Black, on the other hand, is tired of being used only for outlines, and wishes Duncan would draw a black beach ball once in a while. The prose is playful and straightforward, told in believable kid handwriting, and written and illustrated entirely in crayon. The illustrations are cute and in the style of your average elementary schooler, but with a bit of extra whimsy that will make both kids and parents smile. And, just maybe, the fun collection of letters will encourage kids to think outside the box next time they pick up a crayon.