Get the 5 lastest Featured Posts from a category

<?php /* Set the name of the category and the number os posts to be displayed */?>
<?php $first_query = new WP_Query('category_name=name&posts_per_page=7'); ?>
<?php /* Show the posts */ ?>
<?php while ($first_query->have_posts()) : $first_query->the_post(); ?>
    <?php  /* Make the hiperlink to the post */ ?>
    <a href="https://wordpress.stackexchange.com/questions/59934/<?php the_permalink(); ?>">
        <?php /* Get the featured post image */ ?>
        <div class="post-image"> <?php /* This div is just for help you to organize your posts images */ ?>
            <?php the_post_thumbnail(); ?>
        </div>
    </a>
<?php endwhile; // End the loop. Whew. ?>

In the second line, chose the name of the category, and the number of posts that will be displayed in this page. The function get the featured post image and insert into your webpage.