.NavBooks {
width: 155px;
height: 60px;
}
.NavBooks a {
display: block;
width: 155px;
height: 60px;
background: url(images/books.jpg) no-repeat top left;
}
.NavBooks a:hover {
background-position: bottom left;
}

.NavBio {
width: 78px;
height: 47px;
}
.NavBio a {
display: block;
width: 78px;
height: 47px;
background: url(images/bio.jpg) no-repeat top left;
}
.NavBio a:hover {
background-position: bottom left;
}

.NavPress {
width: 137px;
height: 42px;
}
.NavPress a {
display: block;
width: 137px;
height: 42px;
background: url(images/press.jpg) no-repeat top left;
}
.NavPress a:hover {
background-position: bottom left;
}

.NavContact {
width: 209px;
height: 46px;
}
.NavContact a {
display: block;
width: 209px;
height: 46px;
background: url(images/contact.jpg) no-repeat top left;
}
.NavContact a:hover {
background-position: bottom left;
}

.NavBlog {
width: 120px;
height: 46px;
}
.NavBlog a {
display: block;
width: 120px;
height: 46px;
background: url(images/blog.jpg) no-repeat top left;
}
.NavBlog a:hover {
background-position: bottom left;
}

.NavPod {
width: 192px;
height: 42px;
}
.NavPod a {
display: block;
width: 192px;
height: 42px;
background: url(images/podcast.jpg) no-repeat top left;
}
.NavPod a:hover {
background-position: bottom left;
}