Robert Bly was an American poet, author, activist and leader of the Mythopoetic Men's Movement,  best known to the public at large as the author of Iron John: A Book About Men (1990, reprinted 2001 as Iron John: Men and Masculinity). His many books of poems include Stealing Sugar from the Castle: Selected and New Poems, 1950-2013 (W. W. Norton & Company, 2013) and My Sentence Was a Thousand Years of Joy (HarperCollins, 2005).