The well-known humorist uses a reverse alphabet to explore, and rail about, the idiosyncracies of English (``Y is for YEW and for YOU,/But it isn't for USING''), touching on the vagaries of homonyms and spelling, slipping in rhymes after teasing the ear by seeming to withhold them, and engaging in other wordplay (``J is for JEWEL but not GEM./It cannot be for GENIUS,/But can be for JERK''). Meanwhile, in Hull's precisely rendered vignettes, silhouetted on clean white, curiosities with appropriate initials are amalgamated into surreal, jewel-like little compositions; though most of the items are well known, identifying some is a real challenge (a knight ``with kyphosis—a humpback''); still, all is revealed in a long concluding list. A handsome puzzle book that also enhances appreciation for our quirky mother tongue. (Picture book. 9-12)