PositiveProspectIn Peter Ackroyd, Auden has an estimable biographer whose own career stands comparison with the poet’s for industry and commitment to his art ... Auden is a slippery subject ... Regardless, Ackroyd gamely tries to pin his man down with some characteristically punchy declarations of his own ... Perhaps also he has found a subject too unwieldy to cast any sort of net over in 400 pages.