Geraldine Woods has taught every level of English from fifth grade through Advanced Placement at both St. Jean Baptiste High School and The Horace Mann School in New York City. She is the author of more than fifty books, including Independent Study That Works: Designing a Successful Program, Sentence.: A Period to Period Guide to Building Better Readers and Writers, and 25 Great Sentences and How They Got That Way. She is also the creator of the Grammarian in the City blog, which explores a variety of topics related to language, grammar, and writing. She lives in New York City.