Transition to subtractive tools within Photoshop. Focus on the basics of using the eraser tool and how it affects your image data. Practice with more advanced eraser methods, using the background eraser for quick compositing results. For more measured and automated results, use the magic eraser to expedite your compositing workflow. Understand the destructive nature of using eraser tools and how to leverage the history palette to move backwards and forwards through your workflow timeline. Use the power of the history brush to restore elements of an image you have removed.