What is the author's style in The Road to Wigan Pier by George Orwell?

Most of the chapters presented in the text resemble an essay on a given topic. Taken together, Part I depicts the plight of the impoverished working class in England during the 1930s, and Part II is Orwell's individualistic critique of contemporaneous socialism. Gollancz's foreword reads as a critique of Orwell's critique in Part II, and essentially states that Orwell's objections arise because Orwell was himself a member of the middle class—of course, Orwell admits this in the text itself.