This week we welcome back Macmillan Library Marketing as our sponsor. They are enthusiastic about Rainbow Rowell’s latest release, Carry On, and want you to celebrate with them. If you are a librarian in the U.S., enter to win one of their fun Carry On #BookBday party packs. Ten lucky librarians will get balloons, buttons, tea bags, temporary tattoos, a coloring book jacket, and a copy of Carry On!