If You 're Only Human (play) 1912

Seven Keys to Baldpate (novel) 1913

Love Insurance (novel) 1914

Inside the Lines (play) 1915

Inside the Lines [with Robert Welles Ritchie] (novel) 1915

The Agony Column (novel) 1916; also published as Second Floor Mystery, 1930

A Cure for Curables [adaptor, with Lawrence Whitman; from the story by Cora Harris] (play) 1918

See-Saw [with Louis A. Hirsch] (libretto) 1919

Three's a Crowd [adaptor with Christopher Morley; from the story "Kathleen" by Christopher Morley] (play) 1919

The House Without a Key (novel) 1925

The Chinese Parrot (novel) 1926

Fifty Candles (novel) 1926

Behind That Curtain (novel) 1928

The Black Camel (novel) 1929

Charlie Chan Carries On (novel) 1930

Keeper of the Keys (novel) 1932

Earl Derr Biggers Tells Ten Stories (short stories) 1933