* "The German War Plot: The Truth About the Fatherland" (1915): This book, a collection of articles he originally published in his newspaper "The Imperialist," was a highly inflammatory and sensationalized work alleging a vast German conspiracy to undermine Britain. The book gained notoriety for its unsubstantiated claims and accusations of treason against prominent British figures.
* "The Red Peril: The Secret War Against the British Empire" (1919): This book, published after World War I, focused on his fears of Bolshevism and its potential spread to Britain. It advocated for strong anti-communist measures.
* "The Truth About the Great War" (1921): This book, published after the war, offered his perspective on the causes and consequences of the war. It included a highly critical view of the peace treaty and its impact on Britain.
* "The Imperialist" (1910-1914): This newspaper, edited by Pemberton Billing, was known for its jingoistic and anti-German sentiment. It played a significant role in stoking tensions before the outbreak of World War I.
It is important to note that Pemberton Billing's writings were often characterized by their sensationalism, unsubstantiated claims, and political bias. His books and articles should be read with a critical eye, considering the historical context in which they were written and the author's known political views.