How to use images as links?

Question

how can we use images as links. pls explain with examples

Answer 1

<a href="link to your page.format">
  <img src="link to your image.format" alt="Image used as link" style="width:42px;height:42px;border:0;">
</a>

Answer 2

<a href="url_page"><img src="url_img" alt="description"></a>

Answer 3

I spare comments, as it seems to me enough explicit... but feel free to ask for more verbose explanation ;)

Answer 4

thnx