"All it takes is a single tweet or text for some people to reveal their poor grasp of the English language.

"Want to make a better first impression and engender positive feelings that last a long time?

"As mobile work styles become increasingly popular, odds are you’re going to wind up hosting a video conference or webinar sometime in the near future.

Nancy Duarte covers a recent speech by Emma Watson given at the United Nations Headquarters.

Drake Baer makes the case.

Download the Dietary Guidelines for Americans

Download DietaryGuidelines2010 to complete Case 12-24.

Download DietaryGuidelines2010 to complete Case 12-26.

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The material associated with this item is no longer available, but we invite you to read Jason Nazar's article in Forbes on the same topic, "The 21 Principles of Persuasion.

The Writer's Center at the University of Wisconsin, Madison, features an article on the topic of writing clean, concise sentences.

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According to Jacqueline Whitmore (photo, left), "When we’re young, our parents and teachers often instill the importance of saying, “thank you.