Read and Write better

One tends to read a lot about excellent verbal and written communication skills required quite often in newspaper advertisements regarding jobs.
What does the above phrase exactly mean?
I am sure that the phrase points to 'writing and speaking' abilities.
Be that as it may, in any language, good writing and speaking abilities are perceived to be a necessity.
It is more often than not, seen as skills to be acquired by anybody, be it a software engineer,
a businessman ,a home maker, a college professor, a student,a colleague inorder to function efficiently.
I believe good communication ability is a skill rather than a gift. Hence, a skill can be acquired over a period of time rather than winning it like a gift in a lottery!
Grammar and syntax comes to mind while thinking about writing skills, forming sentences and the such......
Speaking ability is a different ability as compared to writing. To build up a rapport, for example, a salesman with a possible client, one must hone skills and communicate in a way that it does not annoy the possible customer but puts him or her in to a comfort zone.......