Much has been written about Mickiewicz, though the vast majority of this scholarly and popular literature is available only in Polish. Works devoted to him, according to Koropeckyi, author of a 2008 English biography, "could fill a good shelf or two". Koropeckyi notes that, apart from some specialist literature, only five book-length biographies of Mickiewicz have been published in English. He also writes that, though many of Mickiewicz's works have been reprinted numerous times, no language has a "definitive critical edition of his works."