js
$(".list li a").hover( function() { // Changes the .image-holder's img src to the src defined in .list a's data attribute.
var value=$(this).attr('data-src');
$(".image-holder img").attr("src", value);
});
css
.image-holder {
float: left;
margin-right: 100px;
display: block;
width: 350px;
height: 500px;
background-color: grey;
}
.list {
margin: 0;
padding: 0;
list-style: none;
padding-top: 200px;
}
a {
color: red;
margin-bottom: 20px;
text-decoration: none;
display: inline-block;
text-transform: uppercase;
font-family: Arial, sans-serif;
}
html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="image-holder">
<img src="http://placehold.it/350x150">
</div>
<ul class="list">
<li><a href="#" data-src="http://placehold.it/350x150">Link 1</a></li>
<li><a href="#" data-src="http://placehold.it/350x250">Link 2</a></li>
<li><a href="#" data-src="http://placehold.it/350x350">Link 3</a></li>
</ul>