The Amazing Pop-Up Grammar Book ($16.99; Oct. 1996; 16 pp.; 0-525-45580-9): If diagramming sentences sends many readers to the land of nod, this pop-up, pull-out book on grammar will hit them like a jolt of caffeine. Activity abounds: Pull a tab and pop punctuation into place; spin a dial and watch the verbs fly by; learn the lesson right up front that rhebus stories rely on nouns. The vivid, frenetic illustrations don't simplify matters, but provide plenty of kidding. This hyperactive grammatical playground is not a tool for teaching neophytes, but will work best with those who already have a basic knowledge of language rules. (Pop-up. 7-10)