Librarians are the lifeblood of any library. They keep the stacks well organized, they assist people in finding the media they need to find, and many of them also do research, too. Without librarians, libraries would be just buildings full of books, media, and computers. For all they do, they deserve a day to celebrate their achievements, and fortunately, there is one. A holiday called National School Librarian Day that’s observed on April 4th every year.