The key term is "A personal essay".
Fascinating as a historical document: the thirties poets are weighed by a thirties poet and even if Auden and Dylan Thomas were friends, MacNeice is nothing less than judicious in his handling of them. It's interesting to see how Eliot, Yeats and Pound were regarded by a representative of "the next generation' without the benefit of hindsight. MacNeice discusses what was then "the new poetry", the 'poetry of pylons", in terms of its rhythms and diction and imagery and is far less doctrinaire than many who followed. His preference is for the poet who is living outside the library:
'I would have a poet able-bodied, fond of talking, a reader of the newspaper, capable of pity and laughter, informed in economics, appreciative of women, involved in personal relationships, actively interested in politics, susceptible to physical impressions'. (198)
The idea that a sense of humour or reading the news paper were revolutionary qualifications for a poet says something about the world he was living in. It seems ironic that if you degendered poet, the statement would still seem revolutionary.
The essay is also an insight into MacNeice as poet, as three of the eleven chapters are his "case book", a survey of the development of his own poetics in which he critically reviews his younger self with its affectations and enthusiasms.
As criticism it offers a salutary reminder that "Modernism" was not the only game in town and it remains a testament to the idea that a poet doesn't have to look down his or her nose at everyone else:
Further I had to earn my own living, and that is antipathetic to a purely aesthetic view of life. And lastly, living in a large industrial city, Birmingham, I recognised the squalor of Eliot was a romanticised squalor because treated on the whole as decor. The 'short square fingers stuffing pipes' were not brute romantic objects abstracted into a picture by Picasso, but were living fingers attached to concrete people-were even, in a sense, my fingers.