It's been three years since the acclaimed Harvard sociology professor and South End resident, Sara Lawrence-Lightfoot, has been at the library to read from her work, but she promised at that time to return to discuss her next book, Exits: The Endings that Set Us Free. Tomorrow, Tuesday March 8 at 6:30 PM, is the night. A MacArthur prize-winner in 1984, and recipient of numerous other awards and honors since, Lawrence-Lightfoot will be the first African-American woman in Harvard's history to receive an endowed chair in her honor, upon her retirement. Her next book, Growing Each Other Up: When Our Children Become Our Teachers, will be out in the fall of this year. Lawrence-Lightfoot has graciously agreed to come back for another reading, so stay tuned... The South End library is fully handicapped accessible. The event is free. Books will be available for sale and signing and to borrow from the library. Seating is limited.