What you don't know about these things, you should try to learn as quickly as possible. More lecture notes, etc. Rules of grammar, punctuation and style are important to the professional writer. Knowledge of the rules and terms of grammar makes you a better writer. If you don't know grammar and style, people are not going to take you seriously as a media professional.
Professional writers develop a serious and continuing interest in the language and how it is used.
All media writing is done according to the rules of a stylebook. Click here to look at a few examples of good media writing. Analyzing and imitating the writing that you find here is a good way of learning how to write in this form. Notice the short sentences and plain and simple language used to express his thoughts. This section give you some on-site exercises that you can try right away to learn a thing or two about grammar and style.