How to Use the Undo, History & Revert tools in Photoshop
The safety-net trio of Undo, History, and Revert protect the intrepid image editor from unexpected disasters. But they also let you toggle operations, compare before-and-after images, and move back and forth through time. Whether you're new to Adobe's popular raster graphics editing software or a seasoned professional just looking to better acquaint yourself with the program and its various features and filters, you're sure to be well served by this video tutorial. For more information, including detailed, step-by-step instructions, watch this free video guide.