Joan Grenier, co-owner of this 48-year-old Valley institution, says local readers come for the store's knowledgeable staff, rich selection and diverse calendar of events, including several book groups and numerous readings by top authors for adults and kids. Other Odyssey favorites: a subscription First Edition Club, a Booklovers Program that earns shoppers a $10 gift card for every $100 spent in the store, and the Gift of Reading program, which handpicks gift books for kids from the store's fantastic children's section.