Bad for blind people:
<br/><a href="images/bosk.jpg"><img src="images/bosk.thumbnail.jpg" /></a><br/><br/>This is a picture from a recent game card.

Good for blind people:
<br/><a href="images/bosk.jpg"><img src="images/bosk.thumbnail.jpg" alt="desribe your image" /></a><br/><br/>This is a picture from a recent game card.