Speaking of headshot retouching, you might be excited to delve deeper into the world of photography and editings. First and foremost, check out the Photographic Processing article on Wikipedia. It will introduce you to the ins and outs of polishing your photos. Another interesting read would be the Retouching article, where you can learn more about the time-honored practice of refining images. And if you want to add a bit of a historical perspective to your skills, you can also check out the History of Photography to better appreciate the legacy of this visual art. Happy reading and retouching!