So ...

Now you can create a new post or page - or edit an existing one - and you can simply paste the given shortcode into your content. The new "Add Gallery" button will open a pop-up window where you can select a given gallery, to insert the appropriate shortcode (in case you have multiple galleries):

And here's the live result:

If you click on any image included in your gallery, a cool lightbox will be activated with navigational features included:

And of course, you can easily customize the lightbox according to your needs:

The cherry on the top: you can easily display your galleries in any widget ready area. Simply insert your shortcode into a regular Wordpress text widget ...

... and you can showcase your galleries wherever you want:

Cool, isn't it?

And that's it my friends! If you have any comments, further questions or update requests please don't hesitate to react! Like, comment and share!

Other related tutorials you may want to see:

How to add random header images to your Wordpress site

How to add a cool Amazon-like magnifying zoom effect to your Wordpress images

How to create clickable interactive images for your Wordpress website

How to increase your site speed with lazy-loaded images

How to bulk-resize previously uploaded large images in Wordpress

How to easily rename images and media files in Wordpress

How to display a before-and-after photo comparison in Wordpress

And don't forget, you can easily come back to this tutorial whenever you want. All you need to do is to bookmark the categorized, daily updated register of my blogs and training materials. Here it is:

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Thanks for your time!