How to Use the History Panel
You can also see that I have opened my HISTORY PANEL which is sitting behind my LAYERS PANEL. But on your PhotoShop screen, the History Panel will be above your Layers Panel, which is the right position for it, and it is recording everything you do to your picture.
Look how many different styles I tried on this picture. Each one says Apply Style

You can actually click on any area in the HISTORY PANEL and it will take you back in time. So if you make a mistake you don't have to totally start over, or keep hitting the CNTRL >> Z to go back a step.
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