Show/hide formatting marks
 
In a printed document, characters such as spaces, tabs and paragraph marks are invisible.
However, Microsoft Word lets you display such formatting marks on the screen. Formatting marks are also known as nonprinting characters or codes.
When formatting marks are turned on, you will see spaces, tabs, paragraph marks and other formatting marks on the screen.
Visible formatting marks help you keep track of formatting.
You have greater control over the formatting, when formatting marks are turned on.

 
Formatting of the selected text changes.
You can enable formatting marks from the Home ribbon. In the Paragraph section, click the show/hide symbol.
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In the paragraph section,click the show/hide symbol .  
You will see various characters such as dots, arrows.
Each mark represents formatting e.g. the paragraph mark sign (¶) represents a paragraph break.

You will see various characters such as dots, arrows.
Each mark represents formatting e.g. the paragraph mark sign (¶) represents a paragraph break.