/*
	~The Most Base~
	---------------
*/
get_permalink() // постоянная ссылка

/*
	~Pagination~
	------------
*/
// Simple Pagination
next_posts_link( '<< Older Posts' );
previous_posts_link( 'Newer Posts >>' );

// Simple Pagination with Title
next_posts_link( '<span>Older Posts</span><h3>%link</h3>', '%title', false );
previous_posts_link( '<span>Newer Posts</span><h3>%link</h3>', '%title', false );

// Numeric Pagination
echo paginate_links();

/*
	~Show Posts of Certain Category~
*/
// for example of category 'about'
// (if see ** - delete line if don't need pagination)
$currentPage = get_query_var( 'paged' ); //**

$aboutPosts = new WP_Query( array(
	'category_name'		=> 'about',
	'posts_per_page'	=> 3,
	'paged'			=> $paged //**
) );

<?php
if( $aboutPosts->have_posts() ):
	while( $aboutPosts->have_posts() ):
		$aboutPosts->the_post();
?>
		<li>
			<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
		</li>
<?php
	endwhile;

	echo paginate_links( array(
		'total' => $aboutPosts->max_num_pages //**
	) );

	//previous_posts_link(); //**
	//next_posts_link( 'Next Page', $aboutPosts->max_num_pages ); //**

endif;
?>