Seljuk Sultanate of Rum , where he produced his works Coleman Barks , Rumi : The Book of Love : Poems of Ecstasy and Longing , HarperCollins , 2005 , p. xxv , For example , Professor Franklin Lewis of the University of Chicago , author of the most complete biography on Rumi , has separate sections for the hagiographical biography of Rumi and the actual biography about him .