Show Page Title and Content of the ‘Posts Page’ in WordPress

When you set a static front page and at the same time set a Posts Page, WordPress will automatically use index.php (or home.php *) to display the Posts Page; as described in the Codex, you’ll lose the output of the title and content of that page.
To show this information on the Posts Page, for instance as an introduction for the posts, add some code to index.php (or home.php):

<?php //this is to output the page title and content for a 'page for posts' page as set under  'settings' - 'reading'
	if( is_home() && !is_paged() && get_option('page_for_posts') ) { 
	$posts_page_id = get_option('page_for_posts'); ?>			
	<header class="entry-header">
		<h1 class="entry-title"><?php echo get_the_title($posts_page_id); ?></h1>
	</header><!-- .entry-header -->
	<?php $posts_page = get_page( $posts_page_id ); ?>
	<div class="entry-content posts-page-entry-content">
	<?php echo apply_filters('the_content', $posts_page->post_content); ?>
	</div><!-- .posts-page-entry-content -->	
<?php } ?>