They are absolutely nuts. They banned (amongst many other authors):

Isabel Allende, Aristophanes, Margaret Atwood, Saul Bellow, T.C. Boyle, Raymond Chandler, Philip K. Dick, Louise Erdrich, John Fante, Gustave Flaubert, Federico García Lorca, Gabriel García Márquez, Allen Ginsberg, Graham Greene, Hermann Hesse, Khaled Hosseini, Aldous Huxley, Kazuo Ishiguro, Jack Kerouac, William Kotzwinkle, Doris Lessing, Cormac McCarthy, John Milton, Toni Morrison, Joyce Carol Oates, Ovid, Philip Roth, Arundhati Roy, Muriel Spark, John Steinbeck, Kurt Vonnegut Jr., Alice Walker,Tom Wolfe...

Obviously they are too uneducated to include Giovanni Boccaccio, Truman Capote, Pier Paolo Pasolini, Michael Ventura, Patrick White...

That happens when you have GOP-aligned people occupy local school boards.