The *Simple Sabotage Field Manual*, created in 1944 by the U.S. Office of Strategic Services (OSS), is a unique World War II-era document that provides guidance on simple methods of sabotage. Originally intended for citizens in enemy-occupied territories, it describes easy-to-execute tactics for disrupting enemy operations without special tools or skills. The manual covers areas such as industrial sabotage, transportation interference, and general workplace disruption, encouraging small acts like misplacing tools, giving incorrect directions, or insisting on unnecessary bureaucracy to lower productivity and morale. Emphasizing the power of collective minor disruptions, this field manual offers a fascinating look at unconventional resistance strategies and reflects the ingenuity of wartime intelligence efforts. Now in the public domain, it serves as a historical document on guerrilla tactics and psychological warfare.