Included with macOS, Photos for macOS helps you manage, enhance, and share your photos. While Photos is a well-rounded program, there's still room to grow—and that's where extensions come in. These software add-ons plug into Photos and add new capabilities, from special color effects to sophisticated retouching. In this course, photographer, author, and educator Derrick Story surveys the extensions that provide advanced image editing features, from working with layers to fun projects such as changing the sky in an image, and more.