Double spacing is a formatting style used in writing where there is a full blank line between each line of text. This means that if you have a paragraph, there will be an empty line between each line, making the text easier to read and edit. It is commonly used in academic papers, manuscripts, and other documents where clarity is important. In programs like Microsoft Word or Google Docs, you can easily set your document to double spacing through the formatting options. This feature is often required by teachers or publishers to provide space for comments and corrections.