(2) 4-6 This adaptation of Dreyer's adult style guide of the same name is as useful and amusing as the original. Dreyer, copy chief at Random House, tackles the hazards of grammar, punctuation, usage, and spelling with clarity, wit, and kindly firmness. To welcome the younger reader, he trims the original text; fifty-five rather than sixty-seven "Assorted Things to Do (and Not to Do) with Punctuation," for example. More importantly, he substitutes plentiful examples from young ­people's literature for the original ­references. Thus Edith Wharton, ­Theodore Dreiser, and William Faulkner make way for Louis Sachar, Rebecca Stead, and Lois Lowry. Dreyer can get technical, as on the somewhat arcane topic of en dashes, but the whole thing is kept light with chatty, sardonic footnotes; colloquial terms; and buoyant enthusiasm: The Haunting of Hill House's final comma is "my favorite piece of punctuation in all of literature." He tackles head-on the legendary crankiness of grammarians and helpfully corrals all their grumpiness into one chapter called "Pet Peeves." To those who might protest that grammatical correctness is a tool of the oppressor, he is brisk and practical. The rules are yours to break, but if you want that college placement or job, don't confuse its and it's on your application. An excellent resource for students and likely even more useful to those who teach them.