Add Author Profile Fields to User Profile

gistfile1.php

<?php
/**
 * Add Author Profile Fields to User Profile
 * 
 * @since 1.0.0
 * @param object $user
 */
function ja_user_fields( $user ) { 
	?>
	<h3>Additional Information</h3>
	<p class="description">Title is shown inside author boxes on blog posts.</p>
	<table class="form-table">
	<tr style="width: 700px; display: block;">
	<th><label for="ja_user_title">Title</label></th>
	<td>
	<input type="text" name="ja_user_title" id="ja_user_title" value="<?php echo esc_attr( get_the_author_meta( 'ja_user_title', $user->ID ) ); ?>" class="regular-text" /><br />
	</td>
	</tr>
	</table>
	<?php
}
add_action( 'show_user_profile', 'ja_user_fields' );
add_action( 'edit_user_profile', 'ja_user_fields' );

/**
 * Save extra user profile fields
 *
 * @param int $user_id
 */
function ja_user_fields_save( $user_id ) {
 
	if ( !current_user_can( 'edit_user', $user_id ) )
		return false;
	 
	update_user_meta( $user_id, 'ja_user_title', $_POST['ja_user_title'] );
}
add_action( 'personal_options_update', 'ja_user_fields_save' );
add_action( 'edit_user_profile_update', 'ja_user_fields_save' );