Each of the famous and influential business books is described in just one sentence.
For instance, here is the central lesson from The Innovator’s Dilemma by Clayton Christensen:
“You have to be willing to kill off or cannibalize your best businesses, or someone else will do it for you.”
Here’s another example, from Peter Drucker’s The Effective Executive:
“Being effective is as much about what you choose not to do as it is about what you actually do each day.”
Here’s a direct link to the complete article.