Executives and managers at every level are prisoners of the notion that a simple style reflects a simple mind. Actually a simple style is the result of hard work and hard thinking; a muddled style reflects a muddled thinker or a person too dumb or too lazy to organize his thoughts. Remember that what you write is often the only chance you’ll get to present yourself to someone whose business you want. If what you write is ornate or pompous or fuzzy, that’s how you’ll be perceived.
William Zinsser, On Writing Well