WP Easy Gallery is an easy to use WordPress Gallery Plugin.
It is easy to understand and set up. AGREED. BUT IT'S SO CLUNKY, for each image u have to go get url, enter that, go back to screen,pick image 1 step, 2nd step pull next url, it's pretty longwinded way. It feels like they could have easily made it more intuitive. But that's the pro version where you can add multiimages at once!