Hopping into #Wordpress theme development! Sharing interesting things I learn: When adding stylesheets in functions.php: wp_enqueue_style = Load this style. wp_register_style = Make WP aware of this style, but don't load it yet.

If you know you're always going to load a style: use wp_enqueue_style. This will register and load the style in one go. If you want to conditionally load a style: You'd first register it THEN you'd enqueue it conditionally.