This course comes from the creator of the highly popular course "Writing With Flair: How To Become An Exceptional Writer". Punctuation Mastery is a straight forward course teaching you everything there is to know about using fundamental punctuation including colons, semi-colons, dashes and more.
Even if your command of vocabulary is strong and you have a flair for creativity you can be let down if your punctuation isn't accurate. People may stop paying attention and you'll lose your credibility.
After this course your use of punctuation will be correct, effective and even stylish - writing can be greatly improved with good use of punctuation, as much as it can be improved with interesting language. You'll not just know the rules, you'll also know how to bend the rules to write for better effect. You'll also feel confident that your writing will be accepted and taken seriously by major publications as well as your readers.