Using the curves adjustment in Photoshop or Lightroom is one of the most powerful things you can do when editing your images. One simple curve can add so much contrast and help bring a RAW photo to life in just a matter of seconds. Whether you're a Lightroom user that uses the Tone Curve, or a Photoshop user that utilizes the Curves adjustment layer, this tutorial will tell you everything you need to know to master the curves adjustment in your photo edits.