Non-Printing Characters in Word

There is a visual feature in Word for checking where line breaks and page breaks have been used, amongst other things.
These are called non-printing characters and include:

• A dot to indicate a space.
• A small arrow to the right to indicate tab spacing.
• A small arrow down and to the left to indicate a line break.
• A pilcrow (a symbol that looks like a back to front capital letter P) to indicate a paragraph.
• A dotted line with the words “Page Break” to indicate a page break.

You can show or hide these non-printing characters by pressing Control + Shift + * (asterisk).