Richard Ellmann 
Yeats, The Man And The Masks 

"The book helps fill in the picture of a complex and fascinating man…indispensable for the serious study of the subject."-Edmund Wilson, The New Yorker The most influential poet of his age, Yeats eluded the grasp of many who sought to explain him. In this classic critical examination of the poet, Richard Ellmann strips away the masks of his subject: occultist, senator of the Irish Free State, libidinous old man, and Nobel Prize winner.