When you launch the editing tool in the Document Editor, the first thing you'll see is a readability score. The readability score is on an A - F scale, and though it is one type of quality score for your writing, it does not necessarily indicate whether the writing is good or bad. Instead, it indicates how easy the writing is for a general audience to understand. If you score an "A'", then almost anyone should be able to read and comprehend your writing with ease. If you score lower, consider reducing sentence length and using less complex vocabulary to make your writing more approachable.