It's a good book, but short : the first 90 pages are about Stevens but the remaining 20, the films of Terrence Malick are discussed.
(Keats or Shelley would have said that I had paid for a pamphlet only ... at nearly 30 bucks, Byron would have laughed)
But it's useful because some points are made which Helen Vendler does not make even in her Introduction to her 'Extended Wings' book. (You'd think that she'd have covered everything, there, wouldn't you ... even when she says in her shorter tome 'Words Chosen Out Of Desire' that Stevens's titles do not have any semantic relation to a poem's actual content. (Well, glory be !)
(Actually, I have only read recently, that WS thought that he did title his poems semantically true to the content.)
Critchley uses general words, like 'anti-realism' : Stevens's philosophical position cannot be 'assimilated to ...' he says ; he thinks, too, that Romanticisms are a fallback to failures, (my words) and that R. is the folly of private sexual intimidations, (my words, again, but I reckon C. means as much.
PS he does mention 'anxious atheisms' too)
His book is best read in collaboration with the best - as all books on Stevens must, I reckon : Vendler, as mentioned, plus Longenbach's Historicist version (that is, if you want politics posing as analysis - but that book is still not a bad one) and perhaps Frank Kermode as an introduction ... but I like George Lensing's, 'A Poet's Growth'. It's clear and distinct ... and it tells me why Robert Frost is, really, as good a poet.