public function add_help_tab() {
    $link_columns_present = $this->display_links();
    $meta_columns_present = $this->display_meta_columns();
    if ( ! ( $link_columns_present || $meta_columns_present ) ) {
      return;
    }

    $help_tab_content = sprintf(
      /* translators: %1$s: Yoast SEO */
      __( '%1$s adds several columns to this page.', 'wordpress-seo' ),
      'Yoast SEO'
    );

    if ( $meta_columns_present ) {
      $help_tab_content .= ' ' . sprintf(
        /* translators: %1$s: Link to article about content analysis, %2$s: Anchor closing */
        __( 'We\'ve written an article about %1$show to use the SEO score and Readability score%2$s.', 'wordpress-seo' ),
        '<a href="' . WPSEO_Shortlinker::get( 'https://yoa.st/16p' ) . '">',
        '</a>'
      );
    }

    if ( $link_columns_present ) {
      $help_tab_content .= ' ' . sprintf(
        /* translators: %1$s: Link to article about text links, %2$s: Anchor closing tag, %3$s: Emphasis open tag, %4$s: Emphasis close tag */
        __( 'The links columns show the number of articles on this site linking %3$sto%4$s this article and the number of URLs linked %3$sfrom%4$s this article. Learn more about %1$show to use these features to improve your internal linking%2$s, which greatly enhances your SEO.', 'wordpress-seo' ),
        '<a href="' . WPSEO_Shortlinker::get( 'https://yoa.st/16p' ) . '">',
        '</a>',
        '<em>',
        '</em>'
      );
    }

    $screen = get_current_screen();
    $screen->add_help_tab(
      [
        /* translators: %s expands to Yoast */
        'title'    => sprintf( __( '%s Columns', 'wordpress-seo' ), 'Yoast' ),
        'id'       => 'yst-columns',
        'content'  => '<p>' . $help_tab_content . '</p>',
        'priority' => 15,
      ]
    );
  }