4 Trees - Tag Based Management Example

// home / about - arguments ##
$args = array (
    'post_type' => array( 'post', 'page' ), // select from a range or post types
    'tax_query' => array(
        'relation' => 'OR',
        array(
            'taxonomy' => 'post_tag',
            'field' => 'slug',
            'terms' => 'about' // this determines the slug of the term to use !! ##
        ),
        // add a second taxonomy to the selection ##
        array(
            'taxonomy' => 'page_tag',
            'field' => 'slug',
            'terms' => 'about'
        )
    ),
    'orderby' => 'modified', // order by latest modified ##
    'order' => 'DESC',
    'posts_per_page' => 1, // only get one result - the latest edited ##
);

// pass arguments to wp_query and return an object to the variable $about ##
$about = new WP_Query( $args );