In 2013 he edited "The New Statesman Century: 100 Years of the Best and Boldest Writing on Politics and Culture". It was published to celebrate the centenary of the "New Statesman". In 2018, "Reaching for Utopia: Making Sense of an Age of Upheaval" (Salt Publishing), a book of Cowley's political and cultural essays and profiles, was published. In 2019, he edited and wrote the introduction to "Statesmanship: The Best of the New Statesman (1913–2019)", which was published in hardback by Weidenfeld & Nicolson.