Hard Part in Writing

Effective communication is when you present information to your reader (or listener) with the least amount of effort on his/her part.  One common misinterpretation of this rule is this:  the more the content, the more the effort the audience has to put in, so reduce the content.  At times this means that important background information is neglected and the audience looses the message.  The key is to be concise without sacrificing any key information.

This is what is hard about writing (or speaking).