The Mailbox September: A monthly book of ideas for September grades 1-3. The themes include back to school, open house, Mexico, apples, owls and Autumn. What's New for November: Wendy's Bookworks is a book filled with November activities that include, action poems, art projects, book making, recipes, dioramas, hands-on math, literature and science explorations. The Mailbox November: A monthly book of ideas for November grades 1-3. The themes include: National Children's Book Week, Election Day, Thanksgiving, Pioneer Times, Quilts, Indigenous People, and Animals in Winter.