<?php
    $author_id = get_the_ID();
    $single_books_query = new WP_Query(array(
        'post_type' => 'post',
        'category_name' => 'books',
        'meta_query' => array(
           array(
             'key' => 'ecpt_pub_author',
             'value' => $author_id,
             'type' => 'NUMERIC',
             'compare' => '='
           ),
          'posts_per_page' => '-1'
    )));


    if ( $single_books_query->have_posts() ) : while ($single_books_query->have_posts()) : $single_books_query->the_post(); ?>
            <a href="<?php the_permalink(); ?>">
                <?php if ( has_post_thumbnail()) {  the_post_thumbnail('directory', array('class'   => "floatleft"));  } ?>
                <h5><?php the_title();?></h5>
                <h6><?php if ( get_post_meta($post->ID, 'ecpt_pub_date', true) ) : echo get_post_meta($post->ID, 'ecpt_pub_date', true);  endif; ?><?php if ( get_post_meta($post->ID, 'ecpt_publisher', true) ) :?>, <?php echo get_post_meta($post->ID, 'ecpt_publisher', true);  endif; ?></h6>
        <p><b>Role:&nbsp;<span style="text-transform:capitalize;"><?php echo get_post_meta($post->ID, 'ecpt_pub_role', true); ?></span>

     //This is the line that isn't working:
        <?php if (get_post_meta($post->ID, 'ecpt_author_cond', true) == 'on') { $faculty_post_id2 = get_post_meta($post->ID, 'ecpt_pub_author2', true); ?><br>
           <?php echo get_the_title($faculty_post_id2); ?>,&nbsp;<?php echo get_post_meta($post->ID, 'ecpt_pub_role2', true); ?>
        <?php } ?>

        </b></p>
        </a>
        <hr>
    <?php endwhile; endif; ?>