The answer to the crossword is ALA, which stands for the American Library Association. The American Library Association is a nonprofit organization that works to promote and improve library services and resources. It was founded in 1876 and has since grown to become the largest library association in the world. ALA works to ensure that libraries are accessible to all people, regardless of their background or economic status. It also works to advocate for libraries and library services, and to provide professional development opportunities for library staff.