[Plugin: Posts 2 Posts] Linking to Displayed Posts

You can use p2p_list_posts( $posts ); or do a manual loop:

https://github.com/scribu/wp-posts-to-posts/wiki/Basic-usage

Yes, that works. Thanks for that. As a follow up … is there a way to show that “related posts” heading used in the basic usage example ONLY if there’s resources listed? I’m having trouble with the conditional.

if ( $connected->have_posts() ) {
  echo '<p>Related posts:</p>';

  p2p_list_posts( $connected );
}

Is it oke to remove the p tags?

Sure. Also, you can replace them with h3 tags etc.

Thanks, just tried it and it works very well.