When it comes to image and photo editing software, everyone thinks of Photoshop first. Although it is very powerful, its relatively complex operations can be daunting for beginners. Here, I would like to recommend a small, easy-to-use, and yet powerful image and photo editing software - Paint.net. Its interface is similar to Photoshop, supporting layers, unlimited history, filter effects, image special effects, cropping, and more. With it, we can also create artistic effects that are comparable to those achieved by large graphic and image processing software. Moreover, it is open-source and completely free.