No recommended subjects about width concern WordPress. Things I require is a method to adjust the width from the Posts table which pops up when Posts is chosen (Title Author Groups, etc.) I have looked to look atOrModify at each .php Template and should not find anything relevant for this. I am sure I have skipped something. Also, I've no immediate demand for "Date" and "Tags" posts. Can One either remove these or least hide them?

Thanks, Mike Carter

This can be done by developing a small wordpress plugin and initiating it:

<?php
/*
Plugin Name: hidey
*/

add_action('admin_head', 'hidey_admin_head');

function hidey_admin_head() {
    echo '<style type="text/css">';
    echo '.column-date { display: none }';
    echo '.column-tags { display: none }';
    echo '.column-author { width:30px !important; overflow:hidden }';
    echo '.column-categories { width:30px !important; overflow:hidden }';
    echo '.column-title a { font-size:30px !important }';
    echo '</style>';
}
?>

Clearly, build your CSS changes when needed.