function prepare_items() {
		$per_page = 20;

		$search_term = '';
		if ( isset( $_REQUEST['s'] ) ) {
			$search_term = sanitize_text_field( $_REQUEST['s'] );
		}

		$columns = $this->get_columns();
		$hidden = array();
		$sortable = $this->get_sortable_columns();

		$this->_column_headers = array( $columns, $hidden, $sortable );

		$current_page = $this->get_pagenum();

		$args = [
			'search_term'   => $search_term,
			'start'         => ( $current_page - 1 ) * $per_page,
			'per_page'      => $per_page,
		];
		$instructors = dozent_get_instructors( $args );

		$this->items = $instructors->results;

		$this->set_pagination_args( array(
			'total_items' => $instructors->count,
			'per_page'    => $per_page,
			'total_pages' => ceil( $instructors->count / $per_page )
		) );
	}