One of the things that makes Prynne's poetry seem difficult (apart from the fact that it is...) is that it's hard for a general reader to gain access to a community of readers who have experience in making sense of this extraordinary poetry and are prepared to talk about it. It's an astute and hardy reader who could evolve with confidence a reading of Prynne's poems simply from their own resources. So it's an inspired idea to collect together a set of essays by readers of Prynne's poetry which are mainly just about the experience of reading it.
Of course, different readers will find more or less in the different essays. I found some of them a little academic, but the accounts of responding to Prynne's poetry by artists and composers were fascinating, not least because their appropriations are in the service of another purpose: they look for the useful, not the successful.
The outstanding essay, though, for me, was Keston Sutherland's impassioned engagement with a very wide range of the poems. The technical comments of a practising poet and the intimacy and range of his judgments make it clear how important Prynne's poetry can (or should) be to an alert and committed reader, which seem to me to be the point of a collection like this.
If it's weak in one area, it seemed to me to be in tackling Prynne's use of the materiality of language apart from its referential qualities; but, then again, it doesn't claim to be an exhaustive or comprehensive survey.
When I finished it, I felt like a better reader of English's greatest living poet. And that, I thought, was a thing worth having.