The thing that did not change

Lists of the skills employers want have been published for forty years. The technologies on them change completely each decade. One item appears on every list in every decade, and it is the one treated as least teachable: writing clearly.

The reason it persists is structural rather than sentimental. Almost all coordinated work now happens in writing, and a sentence that can be read two ways produces either a question, which costs time, or a wrong action, which costs more. Organisations run on documents, and the quality of the documents determines how much of the day is spent clarifying them.

What makes the skill hard to teach is that it is usually described as a matter of style. It is mostly a matter of structure, and structure can be taught directly. Put the conclusion first, so the reader knows what the rest is for. Use one idea per paragraph, so that skimming works. Name the thing you are asking for. Say who does what by when, rather than describing a situation and hoping somebody acts.

None of this requires an elegant vocabulary and some of it works against one. A short, plain sentence that leaves one interpretation is better business writing than a graceful one that leaves two.

For a student the useful version is to practise where the stakes are small. An email asking a teacher for something is a complete exercise in clear writing, and most students write one every week without once treating it as practice.