A style guide ensures consistency and clarity of writing across an industry, business, or project. English offers a multitude of ways to write almost anything, even on a single continent. Sometimes deciding which direction to take is a matter of expression, such as whether to say "traffic light" or "stop-and-go light." English Grammar and Style University of Queensland via edX Learn key concepts and strategies in grammar and style to help you. improve your writing and confidently meet the demand for high levels of literacy in the 21st century. ★★★★☆ Improve Your Writing with Adverb Clauses University of California, Irvine via Coursera