In the past article, you saw how to assign a badge to a seller. You can show those assigned badges on the author page to display the specialty of this author. To accomplish this task WPBM offers a short-code.
<?php echo do_shortcode(‘[woo_pro_badges_catalogue_extended]’); ?>
Place this code inside your author.php template, and there will badge container if it exists or empty if not. You may need some coding experience to do this.