The Facebook Image Libarary is Facebook's ad content management system. Whenever you upload images to Facebook, they'll get saved in your Ad Account's Image Libarary for easy access. You can also use ReFUEL4's handy "Send To Image Library" feature to send images from ReFUEL4 directly into your Facebook Image Libarary. Additionally, if you want to send creatives from ReFUEL4 directly into an ad, you can use our "Send To Ad" feature.
In the ads manager, when you edit an ad, and click "Select Image""Image Library" modal window will open - from here you can select a creative to add to your ads: