It is worth to know that, instead of cropping a picture to a conventional rectangle, you can crop it to a circle, a triangle, an arrow, or even a thought bubble:

With all the different kinds of formatting that Word offers, you may sometimes find it hard to see exactly what formatting is applied to particular characters or a paragraph.
Word provides two tools to help you find out: the Style Inspector and the Reveal Formatting pane.

This feature allows you to review quickly the font and paragraph formatting (and section formatting) used in your text.

This tip describes how to add watermark text or picture.

The following tips contain Shortcut Keys or Hotkeys for changing style parameters of paragraph without mouse movements.

This tip contains Shortcut Keys for formatting.

Use nonbreaking hyphens to hyphenate phrases or terms that you don't want to wrap to another line. With nonbreaking hyphens, the entire phrase or term wraps to the next line instead of breaking.

This tip contains Shortcut Keys or Hotkeys for changing font size.