The 48 Laws of Power by Robert Greene and Joost Elffers. Where The Art of War, by Sun Tzu is written as an overview of the whole topic of strategy, seeking to provide an overall understanding of the subject; and The 36 Strategies tries to impart the knack of strategic thinking through 36 maxims related to well known Chinese folk stories, Mr. Greene focuses on how we influence and manipulate one another, ie "power".
Greene draws from both Eastern and Western history and literature as
his source material. Sun Tzu and Machiavelli as cited as much as
wonderful stories of famous con men. Among my favorites is about a
scrap metal dealer thinking he bought the Eiffel Tower.
of the 48 Laws carries many examples, along with counter examples
where it is appropriate that they be noted, and even reversals.
It is a very thorough study of the subject and the hardback version is beautifully produced.
Law #4 is: Always Say Less Than Necessary.
There are so many facets to this one.
"Better to remain silent and thought a fool than open one's mouth and remove all doubt." - Mark Twain
Did you ever see the movie, Being There? Chance, the simple minded gardener who is forced to leave his sheltered life and go out into the world rises to the heights of power be simply not saying much and having the few things he does utter regarded as profound and insightful.
If others don't know what you are up to, they have fewer opportunities to thwart your plans. Also, by being mostly silent, you may have the element of surprise working for you.
By not saying much, you don't have to worry as much about your own words coming back to haunt you.