Why do you think managers prefer messages that are not written like high school essays?

          I think  managers expect to see messages that are different from college essays due to several reasons. First, a college essay has its specific format  that consists of an introduction (which includes some background about the topic), a couple of paragraphs and some conclusion. The significant difference here is that a school essay often has an abstract topic or a problem which can be solved or described in variety of ways because it’s based on your personal opinion, knowledge and believe. In other words, a topic of a school essay is more theoretical theme while a business message is more specific. Some kind of business messages need in identification of  the problem, find the ways to solve it and analyzes results or benefits of this way of solving. Second, a business message might be just an informative letter that says  about some changes, for instance, in policies or it might be an invitation, for example, to stockholders meeting that does not need to have background information (as a history of a company) and conclusion. Writing your business message you most often know who your receiver is and it helps to understand how much information this person knows about the topic. In a school essay you suppose to write descriptive, broaden text which usually is much longer  than business message should be.