category for people
$tax_query = array( array( 'taxonomy' => 'category', 'terms' => array( 'teachers', ' course-coordinator', ' contributor', ' studio' ), 'field' => 'slug', 'operator' => 'IN', ), );
$tax_query = array( array( 'taxonomy' => 'category', 'terms' => array( 'teachers', ' course-coordinator', ' contributor', ' studio' ), 'field' => 'slug', 'operator' => 'IN', ), );