If the business of biography is to make you wish you'd known the person described, then in the strictest sense Peter Ackroyd has failed entirely. The William Blake outlined here was so ferociously visionary that it is occasionally hard to understand how such a mind was able to occupy a puny human body for any length of time; imagination was not stored in the mind of the great poet, it was bursting out of it.
There are more serious flaws with 'Blake' - Ackroyd has a tendency to repeat his justifications of Blake's deliberate self-alienation and aggrandisation over, and over, and over, and over again, never seeming to trust us to grasp the man's inspirations and desires without a constant guiding hand. That and his habit of leaving key dates and times out of the biography entirely begin to frustrate; outside of Blake's earliest years, his arrest during the Napoleonic Wars for 'seditious talk', and his death (at which he was 'attended by angels', an episode Ackroyd discusses beautifully), the timeframe analysed is more a big, amorphous ball of timey-wimey stuff, slowing melting from the eighteenth into the nineteenth century with all the details buried under the drizzle.
His re-contextualisation of Blake's place in the English literary canon, however, is right on the money; the argument that Blake cannot really be considered a Romantic artist is not new but certainly never better laid out than here, and Ackroyd is faultless when he comes to the chapters specially given over to the minute study of select individual works in Blake's mythology. Told in passionate, forthright and simple prose, they are gemstones in a crown, especially his complex picking-apart of the great epic 'Jerusalem'.
Look to this book, also, for the finest analysis available of how London and, to a lesser extent that may surprise, England itself moulded William Blake and his world, and how they helped birth Urizen, Orc, Los and the mythic Albion in Blake's extraordinary imagination. THE great biography equal to the great poet.