Hi, and welcome to WordPress.com.
This video will show you how to 
add an image gallery widget
to your WordPress.com website or blog.
The gallery widget provides you with a 
simple way to display a photo gallery
or a slideshow in your website's
sidebar or other widget location.
Log in and click on Customize, next to themes,
to launch the Customizer.
Click on Widgets, and choose a widget location
where you want your gallery to appear.
Add the gallery widget.
Once you add the widget to your sidebar,
you'll see the widget settings
that look like this.
Add a title to your widget,
then select the images for your gallery.
To add images from your computer,
drag and drop your files into the box
that appears, or, click Select Files 
to choose a picture from your computer.
To add images that are already 
in your media library,
click on Add to Gallery on the left.
Select any additional images you'd like
to include in your gallery or slideshow
by clicking on them.
When you're finished, click the Add to Gallery
button in the lower right.
When you've uploaded and added all of your
images, you can add captions or drag and drop
to reorder them.
When you're finished, click the Insert Gallery
button in the lower right.
Your gallery is ready to go.
Select the widget style for your gallery,
click Save, and then visit your website
to see your new gallery widget.
For more tips and tricks,
visit the WordPress.com support site.
