I downloaded this for my Kindle for two reason: it had an intriguing title, and the price was right (free). Unfortunately, nobody had reviewed it yet, so I wasn't sure was I was in for, but hey, free, right?
So you cheapwads out there like myself... it's short and fun, if you're in the mood. It appears to be a WWII-vintage text, pre-D-Day, very likely written for a UK-educated citizens (the use of the word "charwoman" was my clue). It's a kind of generalized "how-to" manual for sabotage of enemy infrastructure, general enough to be applicable almost anywhere/when, but with enough specifics to be useful (for example, sugar will wreck an internal combustion engine, but honey and molasses work too).
Particularly intriguing to me weren't the technical suggestions (those were good too), but the social ones. Throughout the work, the would-be saboteur is encouraged to slack invisibly wherever possible, to make use of things like deliberate poor maintenance and insisting on micromanagement. Especially funny was the part advising workers to form and/or join as many committees as possible, as they present great opportunities to use bureaucracy against itself.