This year's Reith lecturer is Dr Nikolaus Pevsner, the German-born British scholar of history of art and architecture, and author of the county guide series, The Buildings of England (1951–74). In this series, Pevsner explores the qualities of art which he regards as particularly English, as illustrated in the works of several English artists, and what they say about the English national character.

In his fourth lecture, Dr Pevsner examines the Perpendicular style, formed in England in about 1330, and which he calls 'the most English creation in architecture'. It represented a complete break with what had gone before, but once it had been established universally in the country by the 1380s, it remained virtually unchanged for 150 years, so much so that even specialists struggle to determine accurate dates for this style of work.