The WWII-era Partisan Leader's Handbook was a short training pamphlet which informed and influenced the guerrilla warfare training programs for:

• British Independent Companies (Commandos);
• Home Guard "Stay Behind" Auxiliaries ("Auxunits");
• Special Operations Executive;
• Resistance groups in Europe;
• Australian and New Zealand Independent Companies;
• Australian Services Reconnaissance Department (Z Special Unit);
• Allied Intelligence Bureau's Philippines Regional Section; and finally
• US Office of Strategic Services.

The pamphlet details the "nuts and bolts" of running guerrilla resistance ops in occupied territory, from the organisation of a guerrilla band to intelligence collection, raids and sabotage. The pamphlet was influenced not only by Colin Gubbins' own experiences in Russia, Ireland and India, but also by his intensive study of guerrilla warfare in general, from the Boer commandos in South Africa during the Boer War, to the guerrilla operations in the Spanish Civil War and the then-ongoing Chinese Civil War and Sino-Japanese war, where Communist leader Mao Tse Tung was using guerrilla tactics to fight both the Chinese Nationalists and the invading Japanese.

The Partisan Leader's Handbook and its companion volumes, Art of Guerilla Warfare and How to Use High Explosives are unique in that they represent the first official British military doctrine on the conduct of guerrilla warfare against an occupying force. This they do in a brief and to the point manner, and if one reads closely, it becomes clear that there is still much wisdom contained within which could be of use to insurgent and counterinsurgent alike in the modern era.

The pamphlets in this series are:

• The Art of Guerilla Warfare
• The Partisan Leader's Handbook
• How to use High Explosives
• Special Operations Executive Operational Stores Handbook