- "Six Modern English Poets" (1915)
- "The King's London" (1916)
- "The Devil's Disciple" (1921)
- "The Housewife's Handbook" (1923)
- "The Englishwoman's Handbook" (1930)
- "The Home of Dreams" (1933)
- "The Story of King Edward VII" (1938)
- "We Go To War" (1940)
- "The King's Son" (1950)
- "The Young Queen" (1952)
- "William Ewart Gladstone" (1957)
- "The Age of Bonapartism" (1965)
- "John Ruskin: A Biography" (1968)
- "The Age of Enlightenment" (1969)
Short Stories:
- "The Red House" (1921)
- "The Blue Room" (1923)
- "The Green Man" (1925)
- "The Golden Key" (1927)
- "The Silver Swan" (1929)
Articles and Essays:
- "The Great War" (1914)
- "The Peace Settlement" (1919)
- "The League of Nations" (1920)
- "The Future of Europe" (1922)
- "The Economic Depression" (1930)
- "The Rise of Hitler" (1933)
- "The Spanish Civil War" (1936)
- "The Second World War" (1940)
- "The Cold War" (1947)
Poetry:
- "Songs of the Open Air" (1909)
- "The Hills of Dreams" (1912)
- "From the Heart of the West" (1920)
Plays:
- "The Princess and the Swineherd" (1912)
- "The Merry-Go-Round" (1921)
- "The Golden Key" (1927)
- "The Silver Swan" (1929)
- "The House of Dreams" (1933)