Tony Gould, in his biography of Colin MacInnes - Inside Outsider (reissued by Faber Finds) - is in no doubt, 'the volume of essays, England, Half English, contains the best of his writing.
Features essays on popular culture (for example, "Pop Songs and Teenagers" and "Sharp Schmutter"), and on the London drinking clubs ("See You at Mabel's"), as well as articles on Nikolaus Pevsner and Ada Leverson.