The figure of William Blake, poet and  prophet, visionary and romantic, exerts a perennial fascination for all lovers of literature. Now, to join its ever-growing representation of the great English poets, the Modern Library makes available a distinguished volume of Blake's work, including some of his illustrations, chosen by Northrop Frye of the University of Toronto. In addition to selections from the lyrics and shorter poems, from the "prophetic books" such as The Four Zoas, Milton and Jerusalem, there is a generous section of prose which includes letters and some of the epigrammatic and revealing marginalia. Professor Frye's Introduction provides a commentary which illuminates both the simplicity of the lyrics and the difficult but consistent symbolism of the prophecies.