The knowledge your glean from PFW will enable you to wield punctuation as a tool to direct the reading of your work. It will no longer be just a series of symbols that you fear because their effect on the reader has never been properly explained to you.
Whether you're a beginning writer or an old pro, a full- or part-time freelancer, a student writer, an essayist, a short story writer, a novelist, or a poet, punctuation is the third most important tool in your inventory. It ranks only after your ability to form letters from lines, circles, and arcs, and your ability to arrange those letters into words. Unfortunately, punctuation also is one of the most often misused tools at your disposal.