Writers love em dashes as much as hunters love Swiss army knives. It’s not difficult to understand why. Like the utilitarian knife, em dashes are versatile tools. Once you find out about these handy dashes, you may fall in love with them too.
What Is an Em Dash?
Em dashes differ from other dashes not only in usage, which we will discuss shortly, but also in appearance. In fact, the em dash is named after its length—it’s about the same width as the capital letter M.