The Gallery plugin allows you to easily add photo galleries to your post or page directly from within the WordPress interface. Gallery is very easy to use as you create galleries similar to the way you create pages and posts in WordPress. While the pro version of the plugin allows you some added functionality, I believe the free basic version is fine for most users.
Once you install the plugin, you’ll get a menu tab on the left side of the WordPress interface which you click to create a photo gallery.
Scroll down the screen and you’ll see the button you use to upload and add images to your gallery.
After your photos are added, you can drag and drop them to change their order of appearance in the gallery. You can also add a link destination when the user clicks on an image.
To add the gallery to your post or page, copy the shortcode from the gallery page and place it where you want it to appear.
Clicking on an image in the gallery will display the image in pop out form.
Gallery is definitely one of the easiest to use and clean looking photo plugins.