Lightroom presets are a set of settings that apply to a photo in one click. They allow you to quickly and easily edit photos, while maintaining the original quality of the image. The preset can include various settings, such as exposure, contrast, saturation, toning, and more.

Important aspect of using Lightroom presets is choosing the right preset for a specific photo. For example, if the photo has bright lighting, you can choose a preset that reduces brightness and increases contrast. If the photo has low contrast, you can choose a preset that increases contrast and reduces saturation.